As a Nissan tech I’m genuinely surprised that dealer didn’t figure it out. First thing I check is ohm the cam lines 60ish good 120 definitely a problem. Then I’ll check maf and ignition coil for power will tell if ecm relay good or not quicker then getting to the ipdm. Then powers and grounds. Word to the wise not even “new” oem ecms are good. Had to go through our tech line to parts warranty a bad new ecm. After 4 hours of run around I put my own cash on the line to order another ecm which fixed the issue
Hey Ivan, not sure if you'll see this. I had an OBD1 car (87 thunderbird turbo coupe), and this whole business of the ECU's and second doubting yourself is the real trouble. You'll check your powers and grounds, get a replacement ecu and think well, I just got a replacement ecu and its still not working so I got to fix something else, only to find out that THAT replacement ECU is bad. 2 years of false diagnosis only to find out that i needed a 3rd ecu was my issue. So glad about your videos! Sorry about the HAUNTED truck!
Just had a fun one. 2012 Focus Beached Whale for 4 years. Was donated to me. Most of the onboard systems non responsive, no crank no start. Traced it all back to the classic fail point on them. TCM. Plus some corrosion on the HS CAN bus lines. TCM plus an Alternator when I got it running. Alternator can be commanded successfully but no output, even in default strategy mode. Was a fun time diagnosing.
@@rkan2 at the moment they old TCM is DOA. No response, all powers and grounds good but since I don't have a core charge on it I plan on diving deeper. I believe it's usually that the boards are connected internally by friction spikes.
Wow, that Nissan is a wounded warrior caught in shop wars! Lot's of preparation work, even before starting diagnostic. Great job testing the ECM, Ivan! Part 2 is pending on getting a good ECM - can't wait to see how it goes!
Another tool I have used to adjust bent or loose connector pins is by using the sharp tip of a pencil style long sharp Xacto blade tool. The blade can slide under the clip, slight twist of the tool to adjust. The thin sharpness of the blade helps a lot with other pin adjustments.
Just goes to show you over the years you have had your channel, Ivan, you have had a lot of good influence. It is difficult to diagnose an issue from a video. GREAT VIDEO!
Nice video. I visited a fairly well known ECM store not far from here. I needed one and was going to pay extra shipping costs , then realized they were 20 miles from me. So I went there. It was a guy in a semi trailer with boxes of used ECMs, and he was painting them flat black and putting decals on them.
Had the runaround with flagship one on a Buick. Ecu not available anywhere else. Month and a half back and forth. Each PCM would have a different issue with random components. Finally a new PCM became available and the job got finished. Don’t really blame them, they are just polishing turds! Good work dude!
Thats were your wrong there not doing proper testing on there used rebuilt ecu's no matter how much junk they take in they should beable to repair them and test and ship good ecu's
@@jeremyhanna3852Yes I fault them for poor quality control testing BUT they are working with cheap poorly designed pcms that have domino effect failures. I just had back surgery. I still have a 70 yr old back ready to fail at the next vertebra 😢
push, pull, or drag it to Ivan if you can! good on the owner for attempting to get this back on the road. sucks that the dealer probably just threw around trade-in value numbers instead of doing proper diag with the appropriate repairs. hopefully this gets sorted in the end.
Another excellent learning video.. while i was watching this video I thought to myself... it would be great if on one corner of the screen there could be an image of the pin layout as the pins are being probed. Just a thought. Always looking forward to your videos.
If you don't want to use bulb testers when testing the ECU but want to avoid DMM DC ghost voltage and draw a small load current, you can add a 220 Ohm non-inductive resistive dummy load (I use a TO-247 100W Thick Film power resistor without a heatsink, it has an isolated case if you want to attach it to a small heat sink) to the DMM inputs which will draw 60 mA ( 50 mA and above will remove ghost voltage for 12 V systems) at 13.2 VDC (close to a common sustainer voltage of 13.5 VDC). I do use bulb testers but usually only for bulb loads like external lighting and signaling. I also have low current LED testers which obviously do not have bulbs but draw very little current less than 50 mA. The issue I have with bulb tester, besides the cold filament inrush current, is the fact they don't tell me much. If, for example, I have a DMM with a 100 Ohm +/- 1% Tolerance resistive dummy load when I measure DC volts, let's say 12.0 VDC, I know how much current I am drawing using Ohm's law. In this case 12.0V/100 Ohms = 120 mA. So, with the DMM and dummy load when measuring DC Volts I know the voltage very accurately at a known current, which is useful data. With my DMM I have many different insulated test leads to choose from; back probes, specific pin probes, clamp on, piercing etc. so my focus tool is my DMM and I just adapt other test methods (like dummy loads) to it.
23:05 "It should even run the truck on 6 cylinders." -- Oh really? In my mind, crossfire would occur and the engine would not start due to different firing orders. 28:38 I was right!
I wonder why the TCM is still off-line. I'm just a bit leery about the CANBUS test as there's no "load" on the wires when their being measured. Ideally, you want the same amount of load the ECM puts on the line to make sure there isn't a high resistance connection somewhere. Plus, it would be nice to establish continuity between the ECM's data connection and the ODBII connector. All that traffic might be from another module that's on this side of the break/high resistance connection.
I just changed the oil filter housing on a friend's 2012 Chrysler 300 with the 3.6L engine. Reminds me a bit of this but not really? It runs and drives great, but the check engine light popped on about 3 months ago. You can't access the ECU to get the CEL codes. But you can communicate with (nearly) every other module, except SRS. None of the modules have a code set for No Comms with ECU, either. I am not really sure what to make of it exactly.
If these ecms failures are common I'd imagine people have already root caused the internal failure? Interesting what actually fails inside cause as long as its not one of the locked and programmed chips, it can for sure be repaired.
It's a sad day, that the customer does better diagnostics than a maun dealer and many repair shops. Good on the customer for giving it a really good try.
It would have been a really fun surprise if it started and actually ran on all 8 cylinders. However it would have been interesting to see codes after the crank attempt. It could have at least revealed some other possible issues. The TCM that sometimes was available seems to me to be a bit of an issue, but we'll see later.
Big difference cranking with a good ECU, it was trying to inject fuel and fire plugs. First ECU definitely bad, and second as well. TRhe only difference between 6 and 8 cylinder ECU is the programming flashed on them, the actual drivers for the extra cylinders will be there, as it is cheaper for Nissan to make the ECU in bulk, and simply flash it on the way to the assembly line for the vehicle, as they have to in any case flash in the VIN, and an extra 10 seconds of flashing the latest firmware is already there, so making it generic is no extra time at all. Just different option bits set in the ECU, telling it which maps to use, and number of cylinders and timing to expect.
I did not see the tachometer flicker when you were cranking the engine, I think it may have an ignition module issue having to do with this power issue with the ECM.
It absolutely amazes me that in this day and age, a factory dealer can't fix their own products, which begs the question, Why even buy a new car when after a certain amount of time it will become unfixable even by the "factory-trained mechanics"?
One guy actually told me point blank that how to repair a car is find the cheapest thing it could be and replace that, if that doesn't fix it then replace the next thing on the list (by cost), replace that and keep going
Ivan This is a great example that there is a growing demand for ECU and other modules repairing/porgramming, Havent you thought about going to that direction as well not just like others doing the troubleshooting and do LEGO? There are very skillfull engineeres/trainers in YT like Luis from LM auto repair in Middle of UK who could help you to pick up the right knowledge etc. He is portugese and he must be electrical engineer not just a technician like I guess you too as he knows thinks what usually do electrical design engineers knows in such a deep level.... so that is only a idea what you might what to explore and make more money :) I know electricians they do only programming and ECU repairing as they can make much more money without having dirt on their hands:)
I would have been amazed if it ran on 6 cylinders. The firing order is wrong, other than cylinder 1, as is the injection order. The cam sensor wheel SHOULD have the wrong pattern to sync, unless it is very simple and just indicates the phase. On the other hand, the ECM may have the same hardware, including the traces to the extra pins, just the wrong firmware.
Thus far that doesn't appear to be a very difficult diagnosis. Nice to have another ECU to confirm the communication issue is with the customers units. Will there be a surprise in part 2?!
I feel like USA is the new Cuba. Parts are hard to find for older vehicles. New quality parts are even harder to find. In part 2 Ivan will have to install a Holley sniper ignition system to make the truck run again.😂
I had the exact same issue with the exact same truck lol. I do mean the same truck. Would have been cool if the 6 cylinder computer would have started it lol. I need to make me up some of those test lights. So handy. Truck is still running great too!
I think one thing that probably makes a difference is the customer recording what they tried and what the results were. At least then you know what has been touched already.
They're not as dumb as the old analogue computers such as the Bosch L-Jetronic ECUs which will run a 4,6 or 8 cylinder engine no problems. Holden ran their then 30 year old 6 cylinder engine in Australia with one of them in 1984 & it was very simple only requiring an ignition pulse signal from the ignition coil & a tachometric relay to power up the fuel pump. It was the same setup BMW used in the 1970's & Opel probably did in the same shape of car (Opel Rekord) in Europe when I was born in 1977 & 7 years before Holden fitted it into the Holden VK Commodore in Australia. They'll run just about any engine back then !
@@PineHollowAutoDiagnostics They were probably hoping he would just trade it in and buy something else.. They were trying to wait him out and see if he would fold.
I wouldn't get the cheap (2xxx series) 2channel pico, it's only 8bit resolution and most of them only have 8k memory. The best 4 channel for the pric3 is R^gol-DHO804. They are small enough to still be "portable" and run on a simple USB-C plug. But it's a full on bench scope and packed full of all the best features; 12bit vertical resolution, 25M deep memory (vs 250M in the 40xx series 4channel pico- which Ivan uses; expensive). Fantastic for the price (four hunded).. The only thing better (for the money) is the 4 channel Pico Ivan uses.
@@PineHollowAutoDiagnostics I wouldn't get the cheap (2xxx series) 2channel pico, it's only 8bit resolution and most of them only have 8k memory. The best 4 channel for the pric3 is R^gol-DHO804. They are small enough to still be "portable" and run on a simple USB-C plug. But it's a full on bench scope and packed full of all the best features; 12bit vertical resolution, 25M deep memory (vs 250M in the 40xx series 4channel pico- which Ivan uses; expensive). Fantastic for the price (four hunded).. The only thing better (for the money) is the 4 channel Pico Ivan uses.
I wouldn't get the cheap (2xxx series) 2channel pico, it's only 8bit resolution and most of them only have 8k memory. The best 4 channel for the pric3 is R^gol-DHO804. They are small enough to still be "portable" and run on a simple USB-C plug. But it's a full on bench scope and packed full of all the best features; 12bit vertical resolution, 25M deep memory (vs 250M in the 40xx series 4channel pico- which Ivan uses; expensive). Fantastic for the price (four hunded).. The only thing better (for the money) is the 4 channel Pico Ivan uses.
Ivan, I think the main problem is that it is a "Nissan". I really enjoyed following you thru the diagnosis process. Looking forward to Part II. Thanks for Sharing! 🙃🙂 P. S. Any reason you are working in the dark?
curious the original issue was a limp mode. always go from the beginning. what causes limp mode? work from there. it seems to be the same scenerio. customer tries then other shop then dealer and then ivan. too many fingers making too many other problems. does make for fun watching though!!!!!
I purchased a computer from a place in Homestead FL they do plug and play deals, the first one I received didn't work so i sent it back with the problems i was having and the second one is just fine and by sending my computer i now have a life time warranty Computer Resources I think is the name !
It’s so satisfying when you can fix a car nobody can fix huh especially when the dealer can’t do it I have fixed so many cars that dealers and shops couldn’t fix nobody wants too invest in diagnostics 🤦🏻♂️ but they will invest in swap tonics 🤦🏻♂️ some shops got it backwards I swear damn great video Ivan
I know the scenario. Was in this 14 yrs at dealer and 36 as shop owner. Dealer doesn’t pay you to think. They pay you to guess and swap using SWAG method. (Scientific Wild A$$ Guess). I got a lot of satisfaction fixing those the dealer gave up on. Probably didn’t get paid what they did for guessing though 🙁
Main reason people struggle with diagnosis is that critical thinking has gone by the wayside in education. It has been replaced with rote memorization. If you dont know how something works you cannot fix it if the answer isnt in the book. Service manuals will usually get you in the neighborhood but if the answer isnt in the manual knowing how a system works is 100% necessary to pinpoint a problem. I have tried numerous times to explain issues and what was tried to a service writer. They smile and are polite and then you see the service ticket and all it says is "Customer states car wont start".
That's because service writers don't understand a word of it in most cases, they don't hire previous mechanics as service writers. You also should understand that your own testing means virtually nothing when you bring it to someone else, they still have to go through and verify everything themselves from step 1. People touching their own vehicles creates more of a problem 9/10 times, in this video Ivan found spread out pins, I'll give you 1 guess how that happened.
I noticed that the TCM was offline with the off the shelf ecm. I didn't think it would start for exactly why Ivan said, cam/crank correlation. But I would've tried too, just for giggles. Since so many hands were in this thing, I can't help but wonder how many man made problems Ivan will find even after he gets good com and serial data...
This made me wonder if you could put the v8 software into that v6 ecu and would it work. But probably v6 ecu is missing drivers for those 2 extra cylinders.
I’ve seen and experienced plenty of poor “reman” pcm stories. If manufacturers aren’t going to supply electronics then they should release the design info to see if someone will build new units so good vehicles don’t get crushed. Just my thoughts.
I still don't understand why the TCM is usually down. Is that TCM built into the ECM? I also don't know how the truck knows it's in park and can display a prndl with no TCM.
Another amazing job Ivan! Its unreal what can be done when someone takes pride in themselves and in what they do. I don't now whom i like to watch more you or Eric from south main auto... Hmm Let me think. ///// Eric for the win! only because he has other actors on his show, and boy, they are entertaining. You are as well! Agreed the more information you have for us the better as it makes us ALL better techs. Some of the other techs will just not put in the time for the customer. If its not in the book as a billable job, they are not interested,
Even though it was at the dealership for 6 weeks and they found nothing atleast they admitted they don’t know what’s wrong and didn’t start throwing parts at it and hand him 4K bill for an unfixed truck. Too bad more aren’t like that.
>IVAN!!!< Ever dealt with old style (not Chinese) MSD 6A ignition box? Mine lost spark, no spark when shorting magnetic trigger wires together... This on 600 HP 401 AMX....
More planned obsolescence for us to have to buy a new vehicle. After 10 years, after production year, I hope you saved some money for a new vehicle purchase.
I would use the scanner to see if the computer works or not, maybe look at buses, that would be about it. If a dealer could not replace the computer because of age, I would junk it, I do own an Astra approaching 20 years that would be the end, actually the dealer replacing the computer is more than the car is worth.
Can anyone recommend scan tool tuition site and forum. What menus items are, meanings of expected good and bad results, etc etc graphing, tips and tricks.. Etc etc
As a Nissan tech I’m genuinely surprised that dealer didn’t figure it out. First thing I check is ohm the cam lines 60ish good 120 definitely a problem. Then I’ll check maf and ignition coil for power will tell if ecm relay good or not quicker then getting to the ipdm. Then powers and grounds. Word to the wise not even “new” oem ecms are good. Had to go through our tech line to parts warranty a bad new ecm. After 4 hours of run around I put my own cash on the line to order another ecm which fixed the issue
I agree 100% this was a pretty straightforward diag. Well it was until people got their hands on it lol
So what chance does an owner of one of these POS have to fix it? Slim to None.
Kudos to the owner, they gave it a lot of effort, went further than most shops. Nothing wrong with a lengthy summary, lots of good background info.
Man, that brother in law went above and beyond on his diagnosis. Good for him. Great information given.
Pretty straight forward diagnosis 👍🏼
@@SouthMainAuto and now we have to deal with the "butchery" haha 🤪
@@PineHollowAutoDiagnostics You have dealt with it before; and it is interesting.
You're constantly getting better, and better at being a problem solver! As i am a poor old backyard mechanic, I really enjoy your videos!
A bad replacement part can drive you crazy for sure! Thanks Ivan!
Hey Ivan, not sure if you'll see this. I had an OBD1 car (87 thunderbird turbo coupe), and this whole business of the ECU's and second doubting yourself is the real trouble. You'll check your powers and grounds, get a replacement ecu and think well, I just got a replacement ecu and its still not working so I got to fix something else, only to find out that THAT replacement ECU is bad. 2 years of false diagnosis only to find out that i needed a 3rd ecu was my issue. So glad about your videos! Sorry about the HAUNTED truck!
Just had a fun one. 2012 Focus Beached Whale for 4 years. Was donated to me. Most of the onboard systems non responsive, no crank no start. Traced it all back to the classic fail point on them. TCM. Plus some corrosion on the HS CAN bus lines. TCM plus an Alternator when I got it running. Alternator can be commanded successfully but no output, even in default strategy mode. Was a fun time diagnosing.
Now whats wrong in thr TCM I am interested?? 😅
Fun one
@@rkan2 at the moment they old TCM is DOA. No response, all powers and grounds good but since I don't have a core charge on it I plan on diving deeper. I believe it's usually that the boards are connected internally by friction spikes.
Thanks for the info. Can you update this post if you find out more?
That you can find your way thru 2 bad ECM's and then program the key to the ECM is simply amazing. Simply amazing!
Wow, that Nissan is a wounded warrior caught in shop wars! Lot's of preparation work, even before starting diagnostic. Great job testing the ECM, Ivan!
Part 2 is pending on getting a good ECM - can't wait to see how it goes!
Another tool I have used to adjust bent or loose connector pins is by using the sharp tip of a pencil style long sharp Xacto blade tool. The blade can slide under the clip, slight twist of the tool to adjust. The thin sharpness of the blade helps a lot with other pin adjustments.
Just goes to show you over the years you have had your channel, Ivan, you have had a lot of good influence. It is difficult to diagnose an issue from a video. GREAT VIDEO!
Nice video.
I visited a fairly well known ECM store not far from here. I needed one and was going to pay extra shipping costs , then realized they were 20 miles from me. So I went there.
It was a guy in a semi trailer with boxes of used ECMs, and he was painting them flat black and putting decals on them.
Lol wtf
@@COBRO98 Yes, on their website picture there's ecm's on wood - that wood is the steps into the back of the trailer.
The truck is running and driving perfect. Awesome job Ivan. Thank you, I really appreciate it.
Dave
@@davidinman4950 Glad to hear that, Dave! 💪😁
Had the runaround with flagship one on a Buick. Ecu not available anywhere else. Month and a half back and forth. Each PCM would have a different issue with random components. Finally a new PCM became available and the job got finished. Don’t really blame them, they are just polishing turds! Good work dude!
Thats were your wrong there not doing proper testing on there used rebuilt ecu's no matter how much junk they take in they should beable to repair them and test and ship good ecu's
@@jeremyhanna3852 Precisely!
@@jeremyhanna3852Yes I fault them for poor quality control testing BUT they are working with cheap poorly designed pcms that have domino effect failures. I just had back surgery. I still have a 70 yr old back ready to fail at the next vertebra 😢
Can’t wait for part 2
13:18 Previous tech spread pins. 23:49 Encouraging hoarding of PCMs. 25:12 Data-driven diagnosis.
Ivan, you are the man. You know this stuff so well. My husband and I are subscribed to you.
Yo Ivan, back at it!
But hey, its a Nissan!
push, pull, or drag it to Ivan if you can! good on the owner for attempting to get this back on the road. sucks that the dealer probably just threw around trade-in value numbers instead of doing proper diag with the appropriate repairs. hopefully this gets sorted in the end.
Very nice video Ivan. I liked the nighttime setting.
Nice video and diagnosis. Flagship one is more like a Flagstone. You’re sinking like a stone when using them. 🤣
Are there any other refurb shops around?
Another excellent learning video.. while i was watching this video I thought to myself... it would be great if on one corner of the screen there could be an image of the pin layout as the pins are being probed. Just a thought. Always looking forward to your videos.
If you don't want to use bulb testers when testing the ECU but want to avoid DMM DC ghost voltage and draw a small load current, you can add a 220 Ohm non-inductive resistive dummy load (I use a TO-247 100W Thick Film power resistor without a heatsink, it has an isolated case if you want to attach it to a small heat sink) to the DMM inputs which will draw 60 mA ( 50 mA and above will remove ghost voltage for 12 V systems) at 13.2 VDC (close to a common sustainer voltage of 13.5 VDC). I do use bulb testers but usually only for bulb loads like external lighting and signaling. I also have low current LED testers which obviously do not have bulbs but draw very little current less than 50 mA.
The issue I have with bulb tester, besides the cold filament inrush current, is the fact they don't tell me much. If, for example, I have a DMM with a 100 Ohm +/- 1% Tolerance resistive dummy load when I measure DC volts, let's say 12.0 VDC, I know how much current I am drawing using Ohm's law. In this case 12.0V/100 Ohms = 120 mA. So, with the DMM and dummy load when measuring DC Volts I know the voltage very accurately at a known current, which is useful data.
With my DMM I have many different insulated test leads to choose from; back probes, specific pin probes, clamp on, piercing etc. so my focus tool is my DMM and I just adapt other test methods (like dummy loads) to it.
23:05 "It should even run the truck on 6 cylinders." -- Oh really? In my mind, crossfire would occur and the engine would not start due to different firing orders. 28:38 I was right!
they wrote a NOVEL...
Great diagnostic.
Very impressive, not many look for pins that won't make a good connection.
I wonder why the TCM is still off-line. I'm just a bit leery about the CANBUS test as there's no "load" on the wires when their being measured. Ideally, you want the same amount of load the ECM puts on the line to make sure there isn't a high resistance connection somewhere. Plus, it would be nice to establish continuity between the ECM's data connection and the ODBII connector. All that traffic might be from another module that's on this side of the break/high resistance connection.
Flagship seems more like a dinghy.
I knew the V6 ECM was going to scan because the check engine light came on immediately instead of a long delay.
I just changed the oil filter housing on a friend's 2012 Chrysler 300 with the 3.6L engine. Reminds me a bit of this but not really? It runs and drives great, but the check engine light popped on about 3 months ago. You can't access the ECU to get the CEL codes. But you can communicate with (nearly) every other module, except SRS. None of the modules have a code set for No Comms with ECU, either. I am not really sure what to make of it exactly.
Happy Halloween 🎃 from Canada 🇨🇦 😊
And now I'm worried that I need a backup ECU. I have a 2005 Titan 4x2 Crew LE that from time to time won't register the VIN with my Autel MX808BT.
O heck Ivan that one is sure causing you some problems. 👍👍
If these ecms failures are common I'd imagine people have already root caused the internal failure? Interesting what actually fails inside cause as long as its not one of the locked and programmed chips, it can for sure be repaired.
This is a awsome video! One of your best I think Ivan. Thanks for all your sharing.
It's a sad day, that the customer does better diagnostics than a maun dealer and many repair shops.
Good on the customer for giving it a really good try.
It would have been a really fun surprise if it started and actually ran on all 8 cylinders.
However it would have been interesting to see codes after the crank attempt. It could have at least revealed some other possible issues.
The TCM that sometimes was available seems to me to be a bit of an issue, but we'll see later.
Well done Ivan 👍
Big difference cranking with a good ECU, it was trying to inject fuel and fire plugs. First ECU definitely bad, and second as well. TRhe only difference between 6 and 8 cylinder ECU is the programming flashed on them, the actual drivers for the extra cylinders will be there, as it is cheaper for Nissan to make the ECU in bulk, and simply flash it on the way to the assembly line for the vehicle, as they have to in any case flash in the VIN, and an extra 10 seconds of flashing the latest firmware is already there, so making it generic is no extra time at all. Just different option bits set in the ECU, telling it which maps to use, and number of cylinders and timing to expect.
I had a nissan armada come in the shop. It would sometimes not start. Problem was the instrument cluster which has part of the security system in it.
Thats called Nats system
I did not see the tachometer flicker when you were cranking the engine, I think it may have an ignition module issue having to do with this power issue with the ECM.
It absolutely amazes me that in this day and age, a factory dealer can't fix their own products, which begs the question, Why even buy a new car when after a certain amount of time it will become unfixable even by the "factory-trained mechanics"?
Waited until the final results before I watched, so here I am. Got my coffee and muffin ready. I had the other muffin already. Lol
One guy actually told me point blank that how to repair a car is find the cheapest thing it could be and replace that, if that doesn't fix it then replace the next thing on the list (by cost), replace that and keep going
Ivan This is a great example that there is a growing demand for ECU and other modules repairing/porgramming, Havent you thought about going to that direction as well not just like others doing the troubleshooting and do LEGO? There are very skillfull engineeres/trainers in YT like Luis from LM auto repair in Middle of UK who could help you to pick up the right knowledge etc. He is portugese and he must be electrical engineer not just a technician like I guess you too as he knows thinks what usually do electrical design engineers knows in such a deep level.... so that is only a idea what you might what to explore and make more money :) I know electricians they do only programming and ECU repairing as they can make much more money without having dirt on their hands:)
I would have been amazed if it ran on 6 cylinders. The firing order is wrong, other than cylinder 1, as is the injection order. The cam sensor wheel SHOULD have the wrong pattern to sync, unless it is very simple and just indicates the phase.
On the other hand, the ECM may have the same hardware, including the traces to the extra pins, just the wrong firmware.
did they program the key in the replacement ecu
Thus far that doesn't appear to be a very difficult diagnosis. Nice to have another ECU to confirm the communication issue is with the customers units.
Will there be a surprise in part 2?!
I feel like USA is the new Cuba. Parts are hard to find for older vehicles. New quality parts are even harder to find. In part 2 Ivan will have to install a Holley sniper ignition system to make the truck run again.😂
I had the exact same issue with the exact same truck lol. I do mean the same truck. Would have been cool if the 6 cylinder computer would have started it lol. I need to make me up some of those test lights. So handy. Truck is still running great too!
Had a 2010 Suzuki Equator that was a no start no comm, found TCM to be shorted out bring the whole network down.
The thought of firing a v6 with a v8 ecu surprises me a little 😉
I think one thing that probably makes a difference is the customer recording what they tried and what the results were. At least then you know what has been touched already.
They're not as dumb as the old analogue computers such as the Bosch L-Jetronic ECUs which will run a 4,6 or 8 cylinder engine no problems.
Holden ran their then 30 year old 6 cylinder engine in Australia with one of them in 1984 & it was very simple only requiring an ignition pulse signal from the ignition coil & a tachometric relay to power up the fuel pump.
It was the same setup BMW used in the 1970's & Opel probably did in the same shape of car (Opel Rekord) in Europe when I was born in 1977 & 7 years before Holden fitted it into the Holden VK Commodore in Australia.
They'll run just about any engine back then !
I'm impressed ivan
Sweet, been waiting for a new video
The dealership didn't want to look at.
Then why hold it for 6 WEEKS?!
@@PineHollowAutoDiagnostics They were probably hoping he would just trade it in and buy something else.. They were trying to wait him out and see if he would fold.
Ivan can you recommend a cheap oscilloscope for diy people by chance thanks.
See Amazon Store :) I would get a 2-channel Pico!
@ Thanks Ivan !!!!
I wouldn't get the cheap (2xxx series) 2channel pico, it's only 8bit resolution and most of them only have 8k memory. The best 4 channel for the pric3 is R^gol-DHO804. They are small enough to still be "portable" and run on a simple USB-C plug. But it's a full on bench scope and packed full of all the best features; 12bit vertical resolution, 25M deep memory (vs 250M in the 40xx series 4channel pico- which Ivan uses; expensive). Fantastic for the price (four hunded).. The only thing better (for the money) is the 4 channel Pico Ivan uses.
@@PineHollowAutoDiagnostics I wouldn't get the cheap (2xxx series) 2channel pico, it's only 8bit resolution and most of them only have 8k memory. The best 4 channel for the pric3 is R^gol-DHO804. They are small enough to still be "portable" and run on a simple USB-C plug. But it's a full on bench scope and packed full of all the best features; 12bit vertical resolution, 25M deep memory (vs 250M in the 40xx series 4channel pico- which Ivan uses; expensive). Fantastic for the price (four hunded).. The only thing better (for the money) is the 4 channel Pico Ivan uses.
I wouldn't get the cheap (2xxx series) 2channel pico, it's only 8bit resolution and most of them only have 8k memory. The best 4 channel for the pric3 is R^gol-DHO804. They are small enough to still be "portable" and run on a simple USB-C plug. But it's a full on bench scope and packed full of all the best features; 12bit vertical resolution, 25M deep memory (vs 250M in the 40xx series 4channel pico- which Ivan uses; expensive). Fantastic for the price (four hunded).. The only thing better (for the money) is the 4 channel Pico Ivan uses.
Wait, they brought it right past South Main auto to Ivan instead! Pretty straight forward diagnosis. ;)
Eric doesn't take out-of-staters... Especially butchered beached whales! 😆🐳
Nice video Ivan.
Ivan, I think the main problem is that it is a "Nissan". I really enjoyed following you thru the diagnosis process. Looking forward to Part II. Thanks for Sharing! 🙃🙂 P. S. Any reason you are working in the dark?
curious the original issue was a limp mode. always go from the beginning. what causes limp mode? work from there. it seems to be the same scenerio. customer tries then other shop then dealer and then ivan. too many fingers making too many other problems. does make for fun watching though!!!!!
Lol, those crickets are loud!
I purchased a computer from a place in Homestead FL they do plug and play deals, the first one I received didn't work so i sent it back with the problems i was having and the second one is just fine and by sending my computer i now have a life time warranty Computer Resources I think is the name !
_All Computer Resources_
@atticstattic
I couldn't remember there name, thanks.
It’s so satisfying when you can fix a car nobody can fix huh especially when the dealer can’t do it I have fixed so many cars that dealers and shops couldn’t fix nobody wants too invest in diagnostics 🤦🏻♂️ but they will invest in swap tonics 🤦🏻♂️ some shops got it backwards I swear damn great video Ivan
I know the scenario. Was in this 14 yrs at dealer and 36 as shop owner. Dealer doesn’t pay you to think. They pay you to guess and swap using SWAG method. (Scientific Wild A$$ Guess).
I got a lot of satisfaction fixing those the dealer gave up on. Probably didn’t get paid what they did for guessing though 🙁
Main reason people struggle with diagnosis is that critical thinking has gone by the wayside in education. It has been replaced with rote memorization. If you dont know how something works you cannot fix it if the answer isnt in the book. Service manuals will usually get you in the neighborhood but if the answer isnt in the manual knowing how a system works is 100% necessary to pinpoint a problem.
I have tried numerous times to explain issues and what was tried to a service writer. They smile and are polite and then you see the service ticket and all it says is "Customer states car wont start".
That's because service writers don't understand a word of it in most cases, they don't hire previous mechanics as service writers.
You also should understand that your own testing means virtually nothing when you bring it to someone else, they still have to go through and verify everything themselves from step 1.
People touching their own vehicles creates more of a problem 9/10 times, in this video Ivan found spread out pins, I'll give you 1 guess how that happened.
Seeing all this drama makes me love my 83 Porsche even more!!!!!!😂😂😂😂😂😂😂
I noticed that the TCM was offline with the off the shelf ecm. I didn't think it would start for exactly why Ivan said, cam/crank correlation. But I would've tried too, just for giggles. Since so many hands were in this thing, I can't help but wonder how many man made problems Ivan will find even after he gets good com and serial data...
Halloween special !
Hopefully part 2 will get this vehicle running.
Thanks for the video Ivan.
This made me wonder if you could put the v8 software into that v6 ecu and would it work. But probably v6 ecu is missing drivers for those 2 extra cylinders.
I’ve seen and experienced plenty of poor “reman” pcm stories. If manufacturers aren’t going to supply electronics then they should release the design info to see if someone will build new units so good vehicles don’t get crushed.
Just my thoughts.
How do the engine modules survive all that heat and vibration under the hood?
What if you tried powering up the relay on original pcm think it will run hmm I wonder
I still don't understand why the TCM is usually down. Is that TCM built into the ECM? I also don't know how the truck knows it's in park and can display a prndl with no TCM.
Scanner glitch I think...
Fine work🎉🎉🎉🎉🎉🎉🎉🎉🎉
I wonder what the code is for Titan Truck Missing.
That like mine Nissan z350 all dead no electrocity any where.ignition out.no power..went for parts
When are we going to see you fly your powered paraglider?
Another amazing job Ivan! Its unreal what can be done when someone takes pride in themselves and in what they do. I don't now whom i like to watch more you or Eric from south main auto... Hmm Let me think. ///// Eric for the win! only because he has other actors on his show, and boy, they are entertaining. You are as well!
Agreed the more information you have for us the better as it makes us ALL better techs. Some of the other techs will just not put in the time for the customer. If its not in the book as a billable job, they are not interested,
Even though it was at the dealership for 6 weeks and they found nothing atleast they admitted they don’t know what’s wrong and didn’t start throwing parts at it and hand him 4K bill for an unfixed truck. Too bad more aren’t like that.
It should take them 2 DAYS to admit that... Not 6 WEEKS! 😂
Had me ready for part 2 dangit
>IVAN!!!< Ever dealt with old style (not Chinese) MSD 6A ignition box? Mine lost spark, no spark when shorting magnetic trigger wires together... This on 600 HP 401 AMX....
It's most likely the cam signal.
Firing order is completely different definitely wouldn't run on the V6 ECU
Very interesting. Thank you.
More planned obsolescence for us to have to buy a new vehicle. After 10 years, after production year, I hope you saved some money for a new vehicle purchase.
I would use the scanner to see if the computer works or not, maybe look at buses, that would be about it. If a dealer could not replace the computer because of age, I would junk it, I do own an Astra approaching 20 years that would be the end, actually the dealer replacing the computer is more than the car is worth.
Can anyone recommend scan tool tuition site and forum. What menus items are, meanings of expected good and bad results, etc etc graphing, tips and tricks..
Etc etc
Doesn't exist...only way to learn is to USE IT and take notes! 😉
If you move to Canada, heated shops and lights 😅
your 'nad' endowment is generous.
Anybody else notice that this Nissan truck was pulled to Ivan with a Ford pickup? Lololol
Burning midnight oil, Ivan? You should re-introduce yourself to your wife!
Ivan gone dark mechanic 😊 scope, shows it talking. im a little confused?
Is there a place to repair the computer
Love your content, but am turned off by multiple parts, I never seem to see the part 2 of your videos. Keep up the great videos
Flagship has burned me twice. Uggh
I swear the last 5 cars that were brought to me the owners said "I replaced the ECM from Flagship 1"...😂😂😂