Just installed one on a school buss, man that was a different animal, the school decided to sell it without the old ecm, or the bolts or spacers, or grommets, so pretty much manufacturing all the components to mount it. You have just enough room to get one arm in the compartment underneath the bus. My hats off to the people who work on them.
Appreciate your videos. I am a Ex CAT/Cummins mechanic retired from a pete dealer. The strangest ecm failure I encounterd was a 550 Acert in a 379 pete. brand new off the piggy back tk.This engine sounded like it had a High lift gasser cam in it was hilarious belching smoke and loping like mad.. ! .Had et plugged into it and it was throwing every code you could think of from cam/crank timing codes to inj pulse width.basically freaking out.Tapped on the ECM case with a rubber mallet ran perfect.flashed new ecm all is well.Did download on bad one for warranty. Cat called service manager week later.Turned out to be a bad solder joint on the hard board. Was a MXS motor and they had over 50 of them that got out into production giving everyone fits on diagnostic side
Hello there. Very informative video! I purchased a caterpillar 525B that took a lot of damage and is being scrapped. Although it’s a lost cause…Most of the electronics are still intact and undamaged. I have a bit of experience with dealing with ECM‘s, I’ve repaired dozens of car and truck ECM’s at the component level… However I’ve never dealt with anything from an huge industrial motor. I buy and repair pallet loads of industrial equipment… mostly as a hobby and supplemental income. But usually stuff like CNC machines, servo drives, motor controls, stuff like that. Never dealt with these massive engines and all of their electronics goodies. I have a humble troubleshooting lab, and will check everything to the best of my ability. And then pass it on to someone who needs it. Maybe I’ll be able to trade it for something interesting… Who knows. The machine I Purchased is going to be scrapped this week or next… it was in like new condition with low hours on it when it took a tumble off of a large embankment and did more damage than it was worth repairing. It belonged to a large construction company and I bought it directly from the owner after his insurance was settled. all of the electronics and wiring were completely undamaged in the fall. Some of the electronics had been disconnected and a few potential buyers had poked around loosening some connections and possibly removed a few sensors or modules. I’m not sure how much is missing, but the main ECM is still there. So I would assume they would’ve taken that if they were going to take anything. My ecm isnt on the side of the engine like shown in your video. It’s directly under the driver seat fastened to the bottom of the cab on the outside. I was curious if it’s common for them to have different locations like this? And how the heck to find all of the other hidden electronics, modules, or sensors. I want to remove anything useful or valuable before it is scrapped. Some of the stuff is really hidden deep and hard to find. I’ll fallow the path of the wires I can see, but I’m worried some have possibly been removed… or I’ll miss some valuable module or parts. Considering a few potential buyers loosened some of the connections and possibly moved or removed things… I just want to make sure I find everything. I Tried to find a schematic or diagram online showing the location of all the modules and sensors that I’ll be removing but no luck so far. The model number of mine is 172-9389-01 Thanks for the video and thanks for your time.
I'm 48, and so far in top physical condition. I had a cabinet shop, have done mostly kitchens, and lots of rehabs. As an entrepreneur I'm looking at starting a road service and truck towing business. thanks
I think a mobile service truck is a pretty lucrative way to make money, if you can specialize even better. RVs for instance are always breaking down and word of mouth spreads quickly. Could make some good money doing that.
Also fixing old Mercedes Benz with over 100,000 miles is also a ludicrous way to make money, if you can specialize in low end communities and slums you can make a killing fixing high mileage Benz, Bmw, Cadillac Escalades.
I have a cat 6NZ and recently job I have done was manifold and the guy did a lot of welding trying to pull out broken studs and since that day I have faulty sensors and replaced it but still showing up and truck shut down while driving or idle no matter what circumstance do you think this is a ECM problem? And I already change and check all wiring. I don’t know what else to check
This is one of the worse jobs on ANY vehicle : Troubleshooting ECM, harness and connectors...and most of the times the problems are intermittent and hard to reproduce when u want it to. I had an ECM die on me once at 140k on a crappy 1996 Eclipse. Darn thing made of kinds of noise and clicking sounds...good thing it did, it just made the whole ordeal a whole lot easier for me. Do HD trucks come with a bunch of body modules(smaller ecm's) like new cars too ? Keep the videos coming...i don't work on HD trucks but i like them a lot. 👍
Forgot to add: Yup, heat KILLS A LOT of electric/electronic. components...the Eclipse ECU gets pretty hot and it gets no air flow(confined to a TIGHT space next to the radiator and getting cozy with the battery, acid bath and fumes, anyone ?lol).
The newer the truck the more modules it has. The engine has one as well as the ABS, sometimes a dash or cab module, body control, and transmission of it has an automatic, are the more common truck ones.
Do you happen to know what typically fails at a component level inside the ECM? I have a 3126b ECM open on the bench and don't see anything obvious with my multimeter.. what is a good resource for the 70 pin connectors to build a bench harness?
Why don't they have an outer iron plate with a jacket bolted down on top of the ECM? You tube in chilled anti-freeze from the center of the plate into the jacket, and cycle out the heated anti-freeze from the edges. What would be wrong with a mini-radiator system bolted down and around the ECM?
greetings from Venezuela, exactly that happens to a 325d excavator, initially it starts at high rpm lasts about a minute on and starts throwing all the injectors as a fault code and does not turn on anymore, the case was that we looked for another ECM and just connected it All the injectors are already out and it does not make the injector recognition sound. My question is, could it be that a used computer also has to be programmed? We don't know what to do anymore.
Have you ever worked on Perkins engine 5.9 it in Caterpillar IT28G forklift. It throwing a code PID:1648 FMI:2 . IT crank no start. Any help would help
I have a generator problem with engine C15 speed hunting.... an indication of oil pressure and coolant temperature error... is that indication the cause of engine speed hunting..? thank you
Hello! I was wondering if you could help me locate where my VIM is located on a 2001 Freightliner fl70 4door sport chassis. I have been scowering the Internet and called a couple places but no one can seem to tell me where it is and I cannot find anything on it. My Allison switch pad is not lightning up and truck will not start. I've gone through all the normal stuff to check but am being told this VIM has fuses in it that could have went bad but cannot check them if I can't find the box. Any info would be greatly appreciated. Thank you
Will a engine speed sensor calibration fault cause a crank no start. A customer of mine installed a new ecm he bought programmed from cat. His old ecm was dead so couldn't get old parameters. From what I remember would run just throw code for speed sensor calibration
It should start, and will have timing calibration not preformed fault. If a download was in the system, you can get some of the old programming if you know the engine serial number. You can dump a timing cal file in the ECM unless it is a early 3176. 70 pin ECM's are easier to do this over 40 pins. I would check my power and ground wires to the ECM. If the old ECM fried, good change it blew a fuse in the truck side.
I'm a mobile tech and everything I do is on site. I work for peterbilt so have access to et and sis i just don't get to mess with cat much anymore and couldnt remember for sure and the calibration. Customer said that truck died coming out of woods and ecm wouldnt wake up and now truck been sitting for a couple of years. They bought ecm off internet and it wouldn't start and then bought one from us that we bench programmed and stiil no start. It didn't have timing calibration code or any other codes. I checked esn with sis to make sure programed with correct software. Did find it was dropping to 7v while cranking and was discoonecting et cause of it and fixed that and thought was going to be my issue. Had 14 psi fuel pressure. I run it out of a bucket of clean fuel and fixed that now have 65psi cranking. Only getting 2v ac to injectors. Customer said he couldn't get it to hit of starting fluid. Et show 100-120 rpms cranking and tried unplugging cam sensor. I pinned flyheel and checked timming mark.I sprayed some starting fluid and it wouldn't hit or smoke. Removed valve covers and cac pipe at intake manifold and exhaust pipe coming from the turbo on exhaust manifold (acert twin turbo) To rule out restriction of air flow especially since its been sitting for so long. Cranked it and sprayed starting fluid and still wouldnt hit and no smoke coming from turbo but smoke coming from crank case and sounds like has alot of blow by. I told him i think it is mechanical because no matter what should hit on starting fluid and didnt even get any smoke and put my hand on turbo outlet and would suck and blow my hand off of it. Not sure if thats normal maybe because of cylinder scavenging but dont ever remember see that before. customer didn't want me to go any further.
Having issues with the ECM in a CAT XQ60. Had the generator running, then I shut it down to top off the fuel. When trying to start up again the motor try’s to turn over then it throws a ECM code.
love your videos anything i can learn is great, i have a c 12 and its cutting out here and there first on a pull then even at an idle, its like the power cuts to the ecm or something , but the guages dont move and thers never a check engine light, checked all wires and found no bad spots or fub throughs, did find one rub through at the plug going in the the rocker for the injecters , but could"t get it to cut out to se if it was the cure , guess will find out with work monday, iseems to be when engine is over normal op temp
Hello Guy, I have been troubling shooting 3512B cat engine, cylinder 5 and 8 is not firing have even interchanged injector, check valve, pressurized cylinder, I decided to check cylinder input since the ECM communicate with solenoid in pwm , I have on nos 5&8 is... 1.340hz while the least on firing cylinders are 98.5hz and highest is 245.4hz while engine running at 600rpm idle
Hi Guy .Ive a 2002 3126 .When my ecm went it acted just like it was a fuel problem for the first day then it began to run rough,then it ran but really really rough.I have 2 of the same year 3126s so i took the other ecm off and put it on and it runs fine.Think i just lucked out.Wonder if other cat motors being same year ect could swap ecm.
A lot of failures is the injector driver fails causing a misfire. Most of which all six can fail and you will have a no start. A ECM is blank (correct part number required) and first you flash it to the software. Once flashed you can put it in test mode (70 pin ECM's) and for 24 hours the ECM can be changed. After 24 hours of key on time the ECM locks in. Or you can bypass the test mode and program engine serial number directly in. Some engines require injector trim file (ACERT) or four digit code. Your engine may or may not have this. Then you have the FTS/FLS for each engine. That is how much fuel is putting on the piston. So with a used ECM you don't know what HP you have unless you hook up to ET. Then the fuel numbers and the injector codes could be off some. After all of that you have the programming of the truck, PPM for the speedo, any PTO functions if used, automatic or manual trans., engine fan and the list goes on. I always tell people get a jump drive and get a ECM replacement file out of your ECM before it fails and you have a copy of the programming. If you go to Cat they will be charged a used ECM replacement fee from the factory, plus any other labor. If you do go and have work done on the engine for example and it has the wrong serial number of the engine in it. You could be asking for trouble, as wrong parts could be installed.
How can I communicate with you guys, I’ve a 2004 motor home with a C7 cat with only 14000 miles, but I’vent started for over four years, and recently I tried to started and it won’t fired up at all, if I put starting fluid it does fire up for few seconds but that’s it. Any thing that I should know Maybe the ECM went belly up?
Josh... I have had you help me before. I have a c7 and it randomly dies. It is in a school bus. I have sent it to Holt cat in Dallas. They couldn't get it to repeat the problem 😑 . I Then decided to drive it around for several hours and nothing happened . Drove it back to the day care. 2 day later it was doing the same thing. Even with the driver in the seat going down the road it would die and she could restart it rolling down the road. Then maybe do it again or maybe not for 3 days. Checked wiring/ battery connections haven't checked ECM or related conditions . The engine is in a Freightliner school bus. Your thoughts ?
when i pulled the plug at the rocker for the injector harness it had oil in it, i thought this was weird, no leaks the far up the engine, it had oil at the computer side also , but there was a leak causing oil on that side of the engine , at that level, is this a problem, i would think so. any comments would be great.
Oil leaking out the EUI harness is a common problem on Cat engines. Have seen a ECM fail as so much oil was running down harness. What I do and Josh hates this product. On the inside harness you have a section of wires to the connector with no sheathing. I take silicone and cover it up and for force glue between wires right at the connector. I try and block oil from entering around the wires. Let it dry over night. If engine is already assembled you have to get the harness out. So you might as well order a new harness as old one one may break, etc. Or on a new harness you can pull the plug off and try heat shrink. You would need different sizes as the plug end would be large down to the wire size. I never tried this, glue is fast and cheap.
Hi, 7 years later .... got a question .. i have a cat 149-6990-10 ecm.. the person gave it to me look at because he wired the main voltage backwards or something like that and fried a Diode in the ecm. However I have no clue what the diode is because its blown... i believe its board number is d4 beside cap c258 on the edge of the right side middle.. I do have a picture. Because i have no clue i replaced it with a t4 diode just to see if the unit would power up.. However I would rather not test out that theory as you might know the diode number.... Well if you see this great if not I get it.. 7 years later...
I have a question my truck will drive great but at times just looses engine power I be going down interestate at 70 mph the truck just shut off I make it to side of road turn key off wait a bit I will here a click inside my truck. My truck is a 2000 GMC c6500 with 3126 I replaced iap valve by heiu pump really could use some help
Just got done replacing two ECMs on 2 different trucks both trucks are 2004 KW T800 with C15 acert BXS one truck having 13826 hrs the other truck having 13914 hrs with in 2 weeks. Trucks just 1 S/N apart. Same code all injectors current high plus a couple of AIV. Thought it was strange
Brother i need ur help,,, i have a 3176 cat engine that wont turn on anymore, i presure washed truck, my pin#5 has power now and i remember it bieng connected to the negative terminal on battery, now its positive, HELP
I have a 2001 Thomas saf-t liner with a cat 3126. It turns over but won’t start. We weren’t getting any power on the harness spot on pin #70. Is pin 70 ignition with key in on position on all cat ecm? And if so what should I try next?
Im facing a big issue of trouble shooting a c32 cat generator. It is deluting diesel in engine oil. With in 1 to 2hrs while loaded it mix 10 to15 liters of diesel in oil sump. Checked fuel trans pump for leak trace nothing after replacing all injector O-rings but still facing the same issues. Exhaust manifold glowing red in the part of cylinder five and six while at fullload.
I have another puzzle for you. I have a 3406e 5ek I have replaced injectors , injector harness and ecm. The engine runs very strong then it will start popping and blowing white smoke. This comes and goes quite frequently. I'm going to try the engine harness next unless you have another suggestion. Oh I took the exhaust manifold off and it's all 6 cylinders.
Thanks for the awesome info. I have a 2003 Thomas pusher with a 3126. It stalled while driving and found 20 amp fuse blown that feeds the ECM. When changing and connecting batteries fuse blows. I disconnect the wire harnesses going to ECM and fuse doesnt blow. Am I safe in assuming that the ECM is bad?
@@ttauriinvestments5756 My problem ended up being a bad ECM. I ordered a Remanufactured one from Peterbuilt and had them program it for me. The location in Flagstaff didnt seem to have the knowledge or time to do the work properly, so I would not recommend. I did find GoECM, after the fact, that was a 1/4 of the price.
I have 2007 motorhome with a C7. The light bar was replaced and it corrected the guage problem that I was having but the odometer was incorrect. Can this problem be corrected?
helo man. could you assist us? may you help us? we dont have software that analyzer the offroad truck power train tool , transmission analyzer 3. have you any idea where we can download it?
No check e. And no certain rpm but mostly from about 5% to 75% throttle. The filters are staying full but it does act like it's getting air but it comes and goes and doesn't die. Psi?
Have a 98 GMC topkick 3126. Runs fine but once it warms up while driving it stahls shutters and shakes has no power can only do 40mph. Or it will just cut off and die out. Its getting plenty of clean fuel. Don't have a scanner, tried that check engine flashing light trick saw from jcook007fix channel. And got 72 , 73, 74,. Could this possibly be the ECM?
which cat communications adapter do i need to communicate with a 2000 Pete with a 3406e sn2ws38662 i have cat et but i see that there are several adapters out there and the 2 is cheaper than the 3 but which do i need.
Hi Adeot Ape, I'm having some trouble with a C9 generator. It has a number of strange intermittant faults, the first being it wouldn't take full load. I've tried running the cylinder cutout test in ET multiple times (amongst other tests}, it passed once but stops the test consistantly while testing unit #3 (the one time it passed, all injectors were "questionable"). The reason ET gives is "a change in engine load or speed, which is not allowed". This is not actually happening as each time I tested it the generator was not connected to any load whatsoever. The ECM also frequently throws an intermittant "Inlet air heater relay current high" code as well. Have you seen anything like this before, and do you suspect this may be the ECM on its way out? I've also had it lose connection to ET randomly a couple of times, with no bumps or change of any kind to the wiring/adapter leading up to the ECM. As a side note I disconnected one speed sensor at a time to check them before starting it back up (it ran fine with no difference to the tests), but to my surprise the ECM didn't seem to care at all that it was missing a speed sensor, let alone throw a code or any sort of warning.
Suppose in a fleet where the trucks have sequential S/N's and one truck's ECM is possibly bad and no CAT ET in sight - for troubleshooting, it should be OK to remove a known good ECM from one of the properly functioning trucks, install it in place of the bad one, and test - right? Even with different injector trim codes, the truck with the bad ECM would now operate satisfactorily with the known good ECM - right?
I had some wiring issues due to those zip ties on the ecm connector. Some would be so tight that wires shorted together or the plastic would cut the wires. Ive also replaced several ecms on the c15s. All were the same fault. The sensor wire for the intake actuator sensor (jake brake pressure?) was battery voltage instead of 5v sense. Wiring was fine. Replaced ecms and sensor and were good to go. But had one come back with same fault 3 years later. What gives? Same fault trouble shoot and ecm is outputing battery instead of 5v sense wire.
+Alex Alanis The IVA oil pressure sensor, the one on the valve cover base by the turbo does go out all the time on ACERT engines, but I've never seen it read battery voltage. Sounds like you have some gremlins on that truck.
Do you need to replace an ecm on a C15 Acert when you change it over to a single turbo with 16:1 compression pistons? My motor is a bxs ecm part number 10r4994? Can this ecm be flash and reprogrammed?
right now I'm working on a C7 acert. truck will run fine with no codes then suddenly die throwing all 6 injector curcuit fault codes and truck will not restart. I've done the solenoid test then they read short on all of them, I wiggle wiring to no change, unplug connection to valve cover and all read open, only randomly they will read OK after the test has been going on for about 5 mins. ECM?
Hey I was wondering how I would be able to run a 2001 cat 3126 on an engine stand.. how would I go about powering up the ecm to get the engine running? I have a 70 pin connector with wires attached but they are all cut since it was pulled out of a truck
+crimson22s You would just need a wiring diagram. Then just run the powers and grounds to the P1 connector. You'll also need to wire in a throttle pedal for rpm control. Should be all you need.
Can an ECM get a virus on it and become corrupted? I had my engine rebuilt by CAT ever since then I’ve had nothing but issues with the way it runs. Jakes not working right, loss of power intermittently, gauges acting up engine fan comes on in -40 degrees weather and stays on all day. I went in with a head gasket blown the truck ran great had no issue other then the head gasket blown they convinced me to do a rebuild so I did and ever so then issues after issue. Ive replaced every sensor on the engine, new fuel pump new fuel lines new fuel housing. All new turbo pipes new exhaust
No, not really, but the software can be corrupted or the ECM or wiring can be bad. It is somewhat common fit the ECM to fail, especially if it is original to the engine.
How about an07 c13 burner eng. LEE ser. # in an Oshkosh. Eng cranks no start no codes ! Guages sweep speedo says lost eng communication! Changed eng harness have pwr n grounds at P1 conn still crank no start installed test ecm same thing !! ???
I'm going from working as a fleet mechanic to a dealership. At a dealer if you own your own laptop will they put oem software on your laptop or do only the company owned laptops get used? I know it will vary from company to company.
Please help. I have a problem with the c7 excavator engine. I changed the fuel and oil pump and now it starts working for 10 seconds and turns off and I don't know what the solution is. I am an Arab and I hope for your help 🥺🥺🥺🥺
Hey there, hoping maybe you could help me out. Ive replaced all my injectors with reman units on my nxs acert. Trying to install the trim files, files go in fine but as soon as key is turned off the trim files go back to old files. Have 12v on 70 with key on, and 12 volts constant on 2 other pins (according to diagram). Have you ever heard of this?
+Big Bore Well that is a new one on me. I've seen ECMs lose trim files and, but usually they go to unprogrammed. Do you notice a difference in the engine running with them incorrectly programmed? If not I wouldn't worry about it. I wouldn't think a battery problem would cause it though, as some trucks have battery disconnect switches and that doesn't seem to affect them.
+Josh Cage The fuel is supposed to help cool the ECM, but if your ECM is leaking you can try to loop the hoses and see how long it lasts. It might last awhile or not, but it would be an ECM either way.
Adept Ape we connected lines together with a jic 6 union and leak stopped. Truck has ran 600 miles or 24 hrs continuously no issue yet but it in January in Indiana and the high outside temperature is 15 today.
Hi there I got a low power issues and my codes injector current fault cyl 1,2 72 cyl 3,473 cyl 5and 6 74 and I'm just replace injector number two you think this is the ECM problem?
+vitaliy kostenko If you are getting all of the injectors coding for current faults then you most likely have a problem with the ECM. I've seen that probably 30 times and every single time it was the ECM.
Hello you are a good mechanic by the caterpillar. I have a piterbilt 387 of the year 2009. I have a big problem with the engine cat c-13 acert . Emission system ,pdf -problem!!!!??? At me a headache what to do or make prompt? thanks in advance
+Евгений Иванцов I would say watch my Regen troubleshooting video and that should educate you on the system better. Did you have a specific question though?
Hello friend I do not know my e-mail so I write in the comments. When I said that there is a problem with the cat with -13Acert. I have a little misunderstood my problem with me does not work system CGI, syste ARD,system PDF. Can I install a flash so these systems do not participate in the engine? I bought such a problem truck.
I have a C7 in a 2007 Motorhome. It keeps giving me a check engine light. I took it to the local diesel repair shop and he said he thinks it's the ECM. How can I have the ECM checked? Is there a good place to take it in Salt Lake City that could check it?
Thank you man greet video .do you have the schematic for the wire between et and Ecm I want to make contact with et and Ecm at home I have c18 set on pm200 cold planer
06 Freightliner Classic electrical problem , turn the key on pin 70 gets power, no other pins have power with key on or off, fuel pressure ok, disconnected the battery for 10 minutes reconnected it still won't start, turns over fine, will crank with starting fluid, normally there's an engine light on when it's running but it's not now, the tachometer moves when you trying to crank it, on a side note don't know if it's related or not, when you step on the brake pedal and all the clearance lights come on. it never did that before, it has shut off on me before last year in heavy rain now it rained really hard last night where I'm at with hail mixed and heavy winds best it shut off a couple of times before that yesterday check the oil check the radiator, they are fine . the last time the guy plugged in the computer says it isn't getting power to the ECM but pin 70 does, checked it myself. I have found a few broken wires and fix them one was a ground wire that made the low air sound buzzer work but nothing else
+Shon Mcintire Sounds like some electrical gremlins. There are other powers and grounds that go to the ECM, they are unswitched sources. Get a diagram and double check them before going any further.
yeah it's a old Warner Truck but with a C15 cat I put Power to pins 52 and 53 it fired right up and is running great so somewhere in the Freightliner which everyone knows they all have electrical Gremlins and it could be where the wiring harness rubs everywhere and anywhere from the vibration thank you you did help
I have a 2005 8500 Chevrolet truck with a C7 cat engine I am not getting the yellow wire to ground the Polin coil for the starter relay I’ve taken the computer off the car dealer said that there’s nothing wrong with the computer everybody I talk to said there’s nothing that will keep the computer from activating the starter relay no crossover the engine if you could please help me with this one I’m exhausted and I have very little hair left to pull out thank you
Not getting any power to injectors. I have tested positive and negative on the right side of the ECM, all tested fine. How do I test other side of the ECM? Please tell me how to donate to your fund, I would be grateful to do if you can help me.
Check the oil pressure sensor at the front of the front of the head. Until it sees sufficient pressure it won't actuate the coils I believe from memory
My cat cs54 c4.4 engine won't start I change fuel pump common rail primary sensor, secondary sensor engine harness when I'm trying to crank ET shows injection disable no any event code no active code When I'm removed the primary sensor then engine take long crank and start While engine running that time I'm connected primary sensor engine stop and shows injection disable What's exactly problem with my engine can u pls explain sir
Just installed one on a school buss, man that was a different animal, the school decided to sell it without the old ecm, or the bolts or spacers, or grommets, so pretty much manufacturing all the components to mount it. You have just enough room to get one arm in the compartment underneath the bus. My hats off to the people who work on them.
Am an Auto Electrician been in the industry for 3 years now and really you are good boss thumbs up..
Appreciate your videos. I am a Ex CAT/Cummins mechanic retired from a pete dealer. The strangest ecm failure I encounterd was a 550 Acert in a 379 pete. brand new off the piggy back tk.This engine sounded like it had a High lift gasser cam in it was hilarious belching smoke and loping like mad.. ! .Had et plugged into it and it was throwing every code you could think of from cam/crank timing codes to inj pulse width.basically freaking out.Tapped on the ECM case with a rubber mallet ran perfect.flashed new ecm all is well.Did download on bad one for warranty. Cat called service manager week later.Turned out to be a bad solder joint on the hard board. Was a MXS motor and they had over 50 of them that got out into production giving everyone fits on diagnostic side
Hello there. Very informative video!
I purchased a caterpillar 525B that took a lot of damage and is being scrapped. Although it’s a lost cause…Most of the electronics are still intact and undamaged. I have a bit of experience with dealing with ECM‘s, I’ve repaired dozens of car and truck ECM’s at the component level… However I’ve never dealt with anything from an huge industrial motor. I buy and repair pallet loads of industrial equipment… mostly as a hobby and supplemental income. But usually stuff like CNC machines, servo drives, motor controls, stuff like that. Never dealt with these massive engines and all of their electronics goodies.
I have a humble troubleshooting lab, and will check everything to the best of my ability. And then pass it on to someone who needs it. Maybe I’ll be able to trade it for something interesting… Who knows.
The machine I Purchased is going to be scrapped this week or next… it was in like new condition with low hours on it when it took a tumble off of a large embankment and did more damage than it was worth repairing. It belonged to a large construction company and I bought it directly from the owner after his insurance was settled.
all of the electronics and wiring were completely undamaged in the fall. Some of the electronics had been disconnected and a few potential buyers had poked around loosening some connections and possibly removed a few sensors or modules. I’m not sure how much is missing, but the main ECM is still there. So I would assume they would’ve taken that if they were going to take anything.
My ecm isnt on the side of the engine like shown in your video. It’s directly under the driver seat fastened to the bottom of the cab on the outside. I was curious if it’s common for them to have different locations like this? And how the heck to find all of the other hidden electronics, modules, or sensors. I want to remove anything useful or valuable before it is scrapped.
Some of the stuff is really hidden deep and hard to find. I’ll fallow the path of the wires I can see, but I’m worried some have possibly been removed… or I’ll miss some valuable module or parts. Considering a few potential buyers loosened some of the connections and possibly moved or removed things… I just want to make sure I find everything.
I Tried to find a schematic or diagram online showing the location of all the modules and sensors that I’ll be removing but no luck so far. The model number of mine is 172-9389-01
Thanks for the video and thanks for your time.
I'm 48, and so far in top physical condition. I had a cabinet shop, have done mostly kitchens, and lots of rehabs. As an entrepreneur I'm looking at starting a road service and truck towing business. thanks
I think a mobile service truck is a pretty lucrative way to make money, if you can specialize even better. RVs for instance are always breaking down and word of mouth spreads quickly. Could make some good money doing that.
Also fixing old Mercedes Benz with over 100,000 miles is also a ludicrous way to make money, if you can specialize in low end communities and slums you can make a killing fixing high mileage Benz, Bmw, Cadillac Escalades.
GREAT CHANNEL BECAUSE IT IS REAL SCHOOL FOR CATERPILLAR
Thank you for great info. Your explanations of how this work are great! THANK YOU!
In your video, at 9:36 when you press the "Begin Flash" button on the CAT ET, does it return any output in a LOG record for the actions performed?
I have a cat 6NZ and recently job I have done was manifold and the guy did a lot of welding trying to pull out broken studs and since that day I have faulty sensors and replaced it but still showing up and truck shut down while driving or idle no matter what circumstance do you think this is a ECM problem? And I already change and check all wiring. I don’t know what else to check
This is one of the worse jobs on ANY vehicle : Troubleshooting ECM, harness and connectors...and most of the times the problems are intermittent and hard to reproduce when u want it to.
I had an ECM die on me once at 140k on a crappy 1996 Eclipse. Darn thing made of kinds of noise and clicking sounds...good thing it did, it just made the whole ordeal a whole lot easier for me. Do HD trucks come with a bunch of body modules(smaller ecm's) like new cars too ? Keep the videos coming...i don't work on HD trucks but i like them a lot. 👍
Forgot to add: Yup, heat KILLS A LOT of electric/electronic. components...the Eclipse ECU gets pretty hot and it gets no air flow(confined to a TIGHT space next to the radiator and getting cozy with the battery, acid bath and fumes, anyone ?lol).
The newer the truck the more modules it has. The engine has one as well as the ABS, sometimes a dash or cab module, body control, and transmission of it has an automatic, are the more common truck ones.
Do you happen to know what typically fails at a component level inside the ECM? I have a 3126b ECM open on the bench and don't see anything obvious with my multimeter.. what is a good resource for the 70 pin connectors to build a bench harness?
So when it days current low on any cylinder code thats always a bad ecm, cant be a harness or a faulty injector?
Why don't they have an outer iron plate with a jacket bolted down on top of the ECM? You tube in chilled anti-freeze from the center of the plate into the jacket, and cycle out the heated anti-freeze from the edges. What would be wrong with a mini-radiator system bolted down and around the ECM?
We are having a hard starting with our CAt 315C L excavator. The injector pump is not sending the fuel to the nuzzles. Need advice
Great video very informative as usual
When I start my caterpillar 3516c engine show a msg primary ECM failed.
Secondary ECM Activate.
How to solve it.
greetings from Venezuela, exactly that happens to a 325d excavator, initially it starts at high rpm lasts about a minute on and starts throwing all the injectors as a fault code and does not turn on anymore, the case was that we looked for another ECM and just connected it All the injectors are already out and it does not make the injector recognition sound. My question is, could it be that a used computer also has to be programmed? We don't know what to do anymore.
where does the ecm ground at, and is it a neg or pos ground on a c12
Have you ever worked on Perkins engine 5.9 it in Caterpillar IT28G forklift. It throwing a code PID:1648 FMI:2 . IT crank no start. Any help would help
I have a generator problem with engine C15 speed hunting.... an indication of oil pressure and coolant temperature error... is that indication the cause of engine speed hunting..? thank you
Hi ,
I try to connect the engine control of bus out side with ET in my workshop but not connected .I don't why can you help me
Hello! I was wondering if you could help me locate where my VIM is located on a 2001 Freightliner fl70 4door sport chassis. I have been scowering the Internet and called a couple places but no one can seem to tell me where it is and I cannot find anything on it. My Allison switch pad is not lightning up and truck will not start. I've gone through all the normal stuff to check but am being told this VIM has fuses in it that could have went bad but cannot check them if I can't find the box. Any info would be greatly appreciated. Thank you
Will a engine speed sensor calibration fault cause a crank no start. A customer of mine installed a new ecm he bought programmed from cat. His old ecm was dead so couldn't get old parameters. From what I remember would run just throw code for speed sensor calibration
It should start, and will have timing calibration not preformed fault. If a download was in the system, you can get some of the old programming if you know the engine serial number. You can dump a timing cal file in the ECM unless it is a early 3176. 70 pin ECM's are easier to do this over 40 pins. I would check my power and ground wires to the ECM. If the old ECM fried, good change it blew a fuse in the truck side.
I'm a mobile tech and everything I do is on site. I work for peterbilt so have access to et and sis i just don't get to mess with cat much anymore and couldnt remember for sure and the calibration. Customer said that truck died coming out of woods and ecm wouldnt wake up and now truck been sitting for a couple of years. They bought ecm off internet and it wouldn't start and then bought one from us that we bench programmed and stiil no start. It didn't have timing calibration code or any other codes. I checked esn with sis to make sure programed with correct software. Did find it was dropping to 7v while cranking and was discoonecting et cause of it and fixed that and thought was going to be my issue. Had 14 psi fuel pressure. I run it out of a bucket of clean fuel and fixed that now have 65psi cranking. Only getting 2v ac to injectors. Customer said he couldn't get it to hit of starting fluid. Et show 100-120 rpms cranking and tried unplugging cam sensor. I pinned flyheel and checked timming mark.I sprayed some starting fluid and it wouldn't hit or smoke. Removed valve covers and cac pipe at intake manifold and exhaust pipe coming from the turbo on exhaust manifold (acert twin turbo) To rule out restriction of air flow especially since its been sitting for so long. Cranked it and sprayed starting fluid and still wouldnt hit and no smoke coming from turbo but smoke coming from crank case and sounds like has alot of blow by. I told him i think it is mechanical because no matter what should hit on starting fluid and didnt even get any smoke and put my hand on turbo outlet and would suck and blow my hand off of it. Not sure if thats normal maybe because of cylinder scavenging but dont ever remember see that before. customer didn't want me to go any further.
Having issues with the ECM in a CAT XQ60. Had the generator running, then I shut it down to top off the fuel. When trying to start up again the motor try’s to turn over then it throws a ECM code.
Which of pin is the nozzle disable in 70pin ecm for c18 cat
Great video!
love your videos anything i can learn is great, i have a c 12 and its cutting out here and there first on a pull then even at an idle, its like the power cuts to the ecm or something , but the guages dont move and thers never a check engine light, checked all wires and found no bad spots or fub throughs, did find one rub through at the plug going in the the rocker for the injecters , but could"t get it to cut out to se if it was the cure , guess will find out with work monday, iseems to be when engine is over normal op temp
Hello Guy, I have been troubling shooting 3512B cat engine, cylinder 5 and 8 is not firing have even interchanged injector, check valve, pressurized cylinder, I decided to check cylinder input since the ECM communicate with solenoid in pwm , I have on nos 5&8 is... 1.340hz while the least on firing cylinders are 98.5hz and highest is 245.4hz while engine running at 600rpm idle
Hi Guy .Ive a 2002 3126 .When my ecm went it acted just like it was a fuel problem for the first day then it began to run rough,then it ran but really really rough.I have 2 of the same year 3126s so i took the other ecm off and put it on and it runs fine.Think i just lucked out.Wonder if other cat motors being same year ect could swap ecm.
A lot of failures is the injector driver fails causing a misfire. Most of which all six can fail and you will have a no start.
A ECM is blank (correct part number required) and first you flash it to the software. Once flashed you can put it in test mode (70 pin ECM's) and for 24 hours the ECM can be changed. After 24 hours of key on time the ECM locks in. Or you can bypass the test mode and program engine serial number directly in. Some engines require injector trim file (ACERT) or four digit code. Your engine may or may not have this. Then you have the FTS/FLS for each engine. That is how much fuel is putting on the piston. So with a used ECM you don't know what HP you have unless you hook up to ET. Then the fuel numbers and the injector codes could be off some. After all of that you have the programming of the truck, PPM for the speedo, any PTO functions if used, automatic or manual trans., engine fan and the list goes on. I always tell people get a jump drive and get a ECM replacement file out of your ECM before it fails and you have a copy of the programming. If you go to Cat they will be charged a used ECM replacement fee from the factory, plus any other labor.
If you do go and have work done on the engine for example and it has the wrong serial number of the engine in it. You could be asking for trouble, as wrong parts could be installed.
Can u tell me if i can take out a C15 and install a 3406e ,do i have to have a adapter for the ecm?
How can I communicate with you guys, I’ve a 2004 motor home with a C7 cat with only 14000 miles, but I’vent started for over four years, and recently I tried to started and it won’t fired up at all, if I put starting fluid it does fire up for few seconds but that’s it.
Any thing that I should know
Maybe the ECM went belly up?
do you repair a cat 3176 engine ECM from a 345bl excavator?
Great Job
the miles on ecm stays the same after swap? what if u have an fresh overhaul, do miles on ecm need to be changed to 0 ?
Josh... I have had you help me before. I have a c7 and it randomly dies. It is in a school bus. I have sent it to Holt cat in Dallas. They couldn't get it to repeat the problem 😑 . I Then decided to drive it around for several hours and nothing happened . Drove it back to the day care. 2 day later it was doing the same thing. Even with the driver in the seat going down the road it would die and she could restart it rolling down the road. Then maybe do it again or maybe not for 3 days. Checked wiring/ battery connections haven't checked ECM or related conditions . The engine is in a Freightliner school bus. Your thoughts ?
when i pulled the plug at the rocker for the injector harness it had oil in it, i thought this was weird, no leaks the far up the engine, it had oil at the computer side also , but there was a leak causing oil on that side of the engine , at that level, is this a problem, i would think so. any comments would be great.
Oil leaking out the EUI harness is a common problem on Cat engines. Have seen a ECM fail as so much oil was running down harness. What I do and Josh hates this product. On the inside harness you have a section of wires to the connector with no sheathing. I take silicone and cover it up and for force glue between wires right at the connector. I try and block oil from entering around the wires. Let it dry over night. If engine is already assembled you have to get the harness out. So you might as well order a new harness as old one one may break, etc. Or on a new harness you can pull the plug off and try heat shrink. You would need different sizes as the plug end would be large down to the wire size. I never tried this, glue is fast and cheap.
Hi, 7 years later .... got a question .. i have a cat 149-6990-10 ecm.. the person gave it to me look at because he wired the main voltage backwards or something like that and fried a Diode in the ecm. However I have no clue what the diode is because its blown... i believe its board number is d4 beside cap c258 on the edge of the right side middle.. I do have a picture. Because i have no clue i replaced it with a t4 diode just to see if the unit would power up.. However I would rather not test out that theory as you might know the diode number.... Well if you see this great if not I get it.. 7 years later...
I have a question my truck will drive great but at times just looses engine power I be going down interestate at 70 mph the truck just shut off I make it to side of road turn key off wait a bit I will here a click inside my truck. My truck is a 2000 GMC c6500 with 3126 I replaced iap valve by heiu pump really could use some help
Just got done replacing two ECMs on 2 different trucks both trucks are 2004 KW T800 with C15 acert BXS one truck having 13826 hrs the other truck having 13914 hrs with in 2 weeks. Trucks just 1 S/N apart. Same code all injectors current high plus a couple of AIV. Thought it was strange
Brother i need ur help,,, i have a 3176 cat engine that wont turn on anymore, i presure washed truck, my pin#5 has power now and i remember it bieng connected to the negative terminal on battery, now its positive, HELP
I have a 2001 Thomas saf-t liner with a cat 3126. It turns over but won’t start. We weren’t getting any power on the harness spot on pin #70. Is pin 70 ignition with key in on position on all cat ecm? And if so what should I try next?
Im facing a big issue of trouble shooting a c32 cat generator.
It is deluting diesel in engine oil. With in 1 to 2hrs while loaded it mix 10 to15 liters of diesel in oil sump. Checked fuel trans pump for leak trace nothing after replacing all injector O-rings but still facing the same issues. Exhaust manifold glowing red in the part of cylinder five and six while at fullload.
I need Et diagnostic tooly, how can i get the original one and how much will it cost me to get it Sir.Thanks. 04:49 pm
I have injector current faults on all cylinders does this mean my ECM is shot?
Great videos. Thanks for posting.
Thanks for the info
Will a 2ws ecm make a 2ks engine start just to see if it will fire
No, programming of the speed sensors not the same. Will have to be flashed, if ECM is compatible.
very help full video many thanks for you chief
I have another puzzle for you. I have a 3406e 5ek I have replaced injectors , injector harness and ecm. The engine runs very strong then it will start popping and blowing white smoke. This comes and goes quite frequently. I'm going to try the engine harness next unless you have another suggestion. Oh I took the exhaust manifold off and it's all 6 cylinders.
+Alice Stoneking Hmmmmm, are you getting a check engine light? What is your fuel pressure when it is acting up?
May sound silly just check fuel primer (they can pull air through
Thanks for the awesome info. I have a 2003 Thomas pusher with a 3126. It stalled while driving and found 20 amp fuse blown that feeds the ECM. When changing and connecting batteries fuse blows. I disconnect the wire harnesses going to ECM and fuse doesnt blow. Am I safe in assuming that the ECM is bad?
I have the. Same issue
@@ttauriinvestments5756 My problem ended up being a bad ECM. I ordered a Remanufactured one from Peterbuilt and had them program it for me. The location in Flagstaff didnt seem to have the knowledge or time to do the work properly, so I would not recommend. I did find GoECM, after the fact, that was a 1/4 of the price.
can you teach how to use the eletronic comunicator adpter for diagnósting?
I have 2007 motorhome with a C7. The light bar was replaced and it corrected the guage problem that I was having but the odometer was incorrect. Can this problem be corrected?
helo man. could you assist us? may you help us? we dont have software that analyzer the offroad truck power train tool , transmission analyzer 3. have you any idea where we can download it?
No check e. And no certain rpm but mostly from about 5% to 75% throttle. The filters are staying full but it does act like it's getting air but it comes and goes and doesn't die. Psi?
+Alice Stoneking For a 5EK, I'd have to look up the spec on the PSI, but I think they should be around 60 psi, I can check on Monday.
I need help for may work no accelaration 320d caterpillar
Please show us how to download the software and program engine control of generators like:caterpillar,cuminse and etc.
Thank you
Excellent vedio very nice job it's my best job
Big YES common cat issue
Hello Adept Ape, where do I buy the ECM software to flash a bulldozer Caterpillar 320D?
If I have ECM in a machine . How can I copy the files from it in case to use them in a new one in the future? Thanks in advance
Have a 98 GMC topkick 3126.
Runs fine but once it warms up while driving it stahls shutters and shakes has no power can only do 40mph. Or it will just cut off and die out. Its getting plenty of clean fuel. Don't have a scanner, tried that check engine flashing light trick saw from jcook007fix channel. And got 72 , 73, 74,. Could this possibly be the ECM?
which cat communications adapter do i need to communicate with a 2000 Pete with a 3406e sn2ws38662 i have cat et but i see that there are several adapters out there and the 2 is cheaper than the 3 but which do i need.
How hard is it to take the moter out of a 2000 Sterling C12 and put it in a 2000 379 Peterbuilt is it compatible?? Please let me know
Thanks
So what about a truck with the injector current faults but still runs just misses intermitenly?
Are files universal between 40 and 70 pin ecms?
No
Hi Adeot Ape, I'm having some trouble with a C9 generator. It has a number of strange intermittant faults, the first being it wouldn't take full load. I've tried running the cylinder cutout test in ET multiple times (amongst other tests}, it passed once but stops the test consistantly while testing unit #3 (the one time it passed, all injectors were "questionable"). The reason ET gives is "a change in engine load or speed, which is not allowed". This is not actually happening as each time I tested it the generator was not connected to any load whatsoever. The ECM also frequently throws an intermittant "Inlet air heater relay current high" code as well. Have you seen anything like this before, and do you suspect this may be the ECM on its way out? I've also had it lose connection to ET randomly a couple of times, with no bumps or change of any kind to the wiring/adapter leading up to the ECM.
As a side note I disconnected one speed sensor at a time to check them before starting it back up (it ran fine with no difference to the tests), but to my surprise the ECM didn't seem to care at all that it was missing a speed sensor, let alone throw a code or any sort of warning.
Suppose in a fleet where the trucks have sequential S/N's and one truck's ECM is possibly bad and no CAT ET in sight - for troubleshooting, it should be OK to remove a known good ECM from one of the properly functioning trucks, install it in place of the bad one, and test - right? Even with different injector trim codes, the truck with the bad ECM would now operate satisfactorily with the known good ECM - right?
+Chad Jessup Yeah that would work to see if it's the ECM. The truck would run fine like that.
Adept Ape hello.could you inbox me please. i have questions about my c15 engine
Ermink@ymail.com
can you explaine what is interlock code sir ??
I had some wiring issues due to those zip ties on the ecm connector. Some would be so tight that wires shorted together or the plastic would cut the wires. Ive also replaced several ecms on the c15s. All were the same fault. The sensor wire for the intake actuator sensor (jake brake pressure?) was battery voltage instead of 5v sense. Wiring was fine. Replaced ecms and sensor and were good to go. But had one come back with same fault 3 years later. What gives? Same fault trouble shoot and ecm is outputing battery instead of 5v sense wire.
+Alex Alanis The IVA oil pressure sensor, the one on the valve cover base by the turbo does go out all the time on ACERT engines, but I've never seen it read battery voltage. Sounds like you have some gremlins on that truck.
Is there a way to jump a new (reman) ECM to a truck C7 engine to bypass the installed ECM to see if the ECM is the problem?
Tnx man. you saved me a lot
You are welcome. I know it can be daunting if your truck isn't running right.
On my ET software there is no system software file option ? is there something other option u can help me
Winflash is what you use for the flash file.
Adept Ape. i like your channel very much. please can you help me on how to get the ET software
Is it possible , losing power and boost after disconnecting batteries for truck repair. They were disconnected 6 hours on 13 years old NXS acert
How can we know the ECM fits for engine truck or generator engines ???
Do you need to replace an ecm on a C15 Acert when you change it over to a single turbo with 16:1 compression pistons? My motor is a bxs ecm part number 10r4994? Can this ecm be flash and reprogrammed?
Part number 10r4094
right now I'm working on a C7 acert. truck will run fine with no codes then suddenly die throwing all 6 injector curcuit fault codes and truck will not restart. I've done the solenoid test then they read short on all of them, I wiggle wiring to no change, unplug connection to valve cover and all read open, only randomly they will read OK after the test has been going on for about 5 mins. ECM?
Most likely an ECM when you get multiple injector current faults.
@@mag2395 . so problem solved??
@@Amarillobymorning777 yes it was the ecm that was bad. New ecm fixed it right up.
Hey I was wondering how I would be able to run a 2001 cat 3126 on an engine stand.. how would I go about powering up the ecm to get the engine running? I have a 70 pin connector with wires attached but they are all cut since it was pulled out of a truck
+crimson22s You would just need a wiring diagram. Then just run the powers and grounds to the P1 connector. You'll also need to wire in a throttle pedal for rpm control. Should be all you need.
Sory sir, I'm try adj.The AVR. affer that, still unstable voltage & hz, of generator c18
Can an ECM get a virus on it and become corrupted?
I had my engine rebuilt by CAT ever since then I’ve had nothing but issues with the way it runs. Jakes not working right, loss of power intermittently, gauges acting up engine fan comes on in -40 degrees weather and stays on all day.
I went in with a head gasket blown the truck ran great had no issue other then the head gasket blown they convinced me to do a rebuild so I did and ever so then issues after issue. Ive replaced every sensor on the engine, new fuel pump new fuel lines new fuel housing. All new turbo pipes new exhaust
No, not really, but the software can be corrupted or the ECM or wiring can be bad. It is somewhat common fit the ECM to fail, especially if it is original to the engine.
How about an07 c13 burner eng. LEE ser. # in an Oshkosh. Eng cranks no start no codes ! Guages sweep speedo says lost eng communication! Changed eng harness have pwr n grounds at P1 conn still crank no start installed test ecm same thing !! ???
Is synthetic oil better for a 3116 cat military truck
I'm going from working as a fleet mechanic to a dealership. At a dealer if you own your own laptop will they put oem software on your laptop or do only the company owned laptops get used? I know it will vary from company to company.
+asavage1576 My company provides the laptops and will NOT allow you to get their software to use on your own laptop as a mechanic.
+Adept Ape hha damn. I figured that was the case. Thanks man.
Please help. I have a problem with the c7 excavator engine. I changed the fuel and oil pump and now it starts working for 10 seconds and turns off and I don't know what the solution is. I am an Arab and I hope for your help 🥺🥺🥺🥺
What are the types of ECM used in the Heavy Equipment Machineries such as Caterpillar
Hey there, hoping maybe you could help me out. Ive replaced all my injectors with reman units on my nxs acert. Trying to install the trim files, files go in fine but as soon as key is turned off the trim files go back to old files. Have 12v on 70 with key on, and 12 volts constant on 2 other pins (according to diagram). Have you ever heard of this?
+Big Bore Well that is a new one on me. I've seen ECMs lose trim files and, but usually they go to unprogrammed. Do you notice a difference in the engine running with them incorrectly programmed? If not I wouldn't worry about it. I wouldn't think a battery problem would cause it though, as some trucks have battery disconnect switches and that doesn't seem to affect them.
sir,
I have 1300 ED series (ECM ) Module wiring digram need.
Thanks.
hey man i need to ask when replacing an 212-9450: CONTROL GP-ENGINE ELECTRONIC Caterpillar with another it need to be program or not ?
+jaafar Kh Yes, all Cat ECMs are unprogrammed and need to be programmed, but it can be done after or before installation.
ok thank you
Any experience with cat 3176 mine leaks fuel out top! Can I bypass the ecm by connecting the fuel lines together?
Please please advise
+Josh Cage The fuel is supposed to help cool the ECM, but if your ECM is leaking you can try to loop the hoses and see how long it lasts. It might last awhile or not, but it would be an ECM either way.
Adept Ape hook hoses together with union or wrap fuel line around ecm to help cool?
+Josh Cage I would just connect them with a union, I don't think wrapping the lines around it would give it much cooling benefit.
Adept Ape we connected lines together with a jic 6 union and leak stopped. Truck has ran 600 miles or 24 hrs continuously no issue yet but it in January in Indiana and the high outside temperature is 15 today.
Do you still manage this channel cuz I got an issue with my ECM I wanted to ask something?
This was a great video man I learned a whole lot I really want to thank you the dealer was going to beat me across my head $6,000 thank you man
Hi there I got a low power issues and my codes injector current fault cyl 1,2 72 cyl 3,473 cyl 5and 6 74 and I'm just replace injector number two you think this is the ECM problem?
+vitaliy kostenko If you are getting all of the injectors coding for current faults then you most likely have a problem with the ECM. I've seen that probably 30 times and every single time it was the ECM.
Hello you are a good mechanic by the caterpillar. I have a piterbilt 387 of the year 2009. I have a big problem with the engine cat c-13 acert . Emission system ,pdf -problem!!!!??? At me a headache what to do or make prompt? thanks in advance
+Евгений Иванцов I would say watch my Regen troubleshooting video and that should educate you on the system better. Did you have a specific question though?
Hello friend I do not know my e-mail so I write in the comments. When I said that there is a problem with the cat with -13Acert. I have a little misunderstood my problem with me does not work system CGI, syste ARD,system PDF. Can I install a flash so these systems do not participate in the engine? I bought such a problem truck.
I have a C7 in a 2007 Motorhome. It keeps giving me a check engine light. I took it to the local diesel repair shop and he said he thinks it's the ECM. How can I have the ECM checked? Is there a good place to take it in Salt Lake City that could check it?
Thank you man greet video .do you have the schematic for the wire between et and Ecm I want to make contact with et and Ecm at home I have c18 set on pm200 cold planer
06 Freightliner Classic electrical problem , turn the key on pin 70 gets power, no other pins have power with key on or off, fuel pressure ok, disconnected the battery for 10 minutes reconnected it still won't start, turns over fine, will crank with starting fluid, normally there's an engine light on when it's running but it's not now, the tachometer moves when you trying to crank it, on a side note don't know if it's related or not, when you step on the brake pedal and all the clearance lights come on. it never did that before, it has shut off on me before last year in heavy rain now it rained really hard last night where I'm at with hail mixed and heavy winds best it shut off a couple of times before that yesterday check the oil check the radiator, they are fine . the last time the guy plugged in the computer says it isn't getting power to the ECM but pin 70 does, checked it myself. I have found a few broken wires and fix them one was a ground wire that made the low air sound buzzer work but nothing else
+Shon Mcintire Sounds like some electrical gremlins. There are other powers and grounds that go to the ECM, they are unswitched sources. Get a diagram and double check them before going any further.
yeah it's a old Warner Truck but with a C15 cat I put Power to pins 52 and 53 it fired right up and is running great so somewhere in the Freightliner which everyone knows they all have electrical Gremlins and it could be where the wiring harness rubs everywhere and anywhere from the vibration thank you you did help
Hi! i like your video very informative, do you also do insite cummins engine, just need to know more about it. thanks!
pls can u tell me who i can connect the tools cat et with cat C7engine but cannot reaading what the prb, pls
I have a 2005 8500 Chevrolet truck with a C7 cat engine I am not getting the yellow wire to ground the Polin coil for the starter relay I’ve taken the computer off the car dealer said that there’s nothing wrong with the computer everybody I talk to said there’s nothing that will keep the computer from activating the starter relay no crossover the engine if you could please help me with this one I’m exhausted and I have very little hair left to pull out thank you
Not getting any power to injectors. I have tested positive and negative on the right side of the ECM, all tested fine. How do I test other side of the ECM? Please tell me how to donate to your fund, I would be grateful to do if you can help me.
Check the oil pressure sensor at the front of the front of the head. Until it sees sufficient pressure it won't actuate the coils I believe from memory
My cat cs54 c4.4 engine won't start I change fuel pump common rail primary sensor, secondary sensor engine harness when I'm trying to crank ET shows injection disable no any event code no active code
When I'm removed the primary sensor then engine take long crank and start
While engine running that time I'm connected primary sensor engine stop and shows injection disable
What's exactly problem with my engine can u pls explain sir