That's great news Pat! Thank you for sharing and giving the update. I have an 05 e320 cdi and replacement parts don't have to be flashed like the more modern MBs. Its infuriating that they designed them that way. I will be buying an 07 gl320 cdi in the next couple days and just wanted to research all I could to see what all I'd be able to do should I need to repair. Like you I am a big DIYer. I too plan on doing the dpf and egr delete. Another absolutely infuriating addition to diesels. I wish they would bring back the inline engines like the om648 and those like them. God bless and good on ya!
I put a set of new denso injectors into my old hilux ute, along with valve seals and rocker cover gasket and an oil change while im there, and it ran beautifully. Excellent improvement to the vehicle. Much better and smooth responsive acceleration. ...that was two days ago. Today i took it to a mechanic to enter the codes. Tonight i crawl home with terminal engine knock in a heavy cloud of smoke. F;#k the codes. Honestly, ive been doing all the work and NEVER trusted a mechanic. The VERY SAME afternoon i take my car for the first time to a mechanic, its broken. I cant afford these 'professional advice'. So mad my beautiful car that i worked hard on making sure all the ports were so clean and everything torqued to spec and it ran so well...now its a bomb. Literally.
This might be acase on earlier Mercedes diesel engines I’m currently working on a 2017 Sprinter OEM 651 after multiple tries engine definitely not starting with replacement injectors so we gonna go through a process of re-coding replacement injectors and see how we go I also see new videos popping up about the same issue
If you need to take car to dealer to diagnose it tells alot about your skills. Even tools on your table :D Here in Europe we have a lot diesel engines and every one know that best and easy way is to code new or refurbished injector/s to car ecu and letvit know new ima code with new flow rates. It is properly done way not abusing your engine, dpf and all fuel injection system driving with over fueling injectors for months. Why? You can eat soup with fork or with spoon it is your choice
As a injector repair guy, yes you better of coding them in. If you don’t code it in injector will run out off tolerance. If you don’t code it in car either not run smoothly as or not run as efficiently. Thats why after every reconditioning we do, test bench gives new codes. Wrong advise to tell not to code it in.
@@PatsCarGarage If so, ever injector brands or remanufactures or diesel specialists are wrong by advising to code it in but you are the only one right by saying better not to code in. All new test benches calibrate and gives code for new tolerances for notting?. You are fitting brand new injectors but not coding , its a bit cowboy job to me.
@@emrahsavuk4784 Of course it's better to code them. It's just there's this belief on the internet that if you don't code them, your connecting rods will fly out the side of the block. They won't, it's been 4 years, if you're in a pinch and can't code the injectors for whatever reason, it's going to be fine.
@@PatsCarGarage Hello. UK Guy here. I have an 06 W164 4Matic and need the original injectors cleaning. If I take them out and professionally cleaned will they need coding when put back in? Thanks in advance.
@@winstonbrown1516 I don't believe that cleaning will require them to be coded. Just make sure you mark which injector came out of which cylinder so you don't mix them up.
Mercedes Benz E class 2021, Check engine light is ON, replaced injector 3 after checked up. I didn’t do programming for new injector, the check engine light still ON, so have I programming the new injector ? Or what should I do to Check Engine OFF ?
company in germany rebuilds and properly calibrates injectors for about £120 + £30 refundable deposit once they receive old injector. prices in Canada (and states) are just insane.
You can run it on key on (which runs the electric fuel pump) for a while. You'll hear the air bubbles being forced out. Once the rush of air bubbles goes away, you can try cranking the engine, which will also run the high pressure fuel pump, but it might not start for a while. When I replaced all my injector seals I had to crank the engine for a good 2 minutes before it started. Give your starter some breaks of course.
Hey Pat, thanks for the video! I have SDS and was still unable to code my replacement injectors for my 12 ML350 BT. Took the car for a light spin and will keep driving it with the hope the trim on the CDI 6 ME will do its magic. Any chance you can make a video on how you run Diesel Purge? Right in the tank or through the filter? Thanks!
Pat's Car Garage the stratified injection gets out of balance... you almost can not tell the difference , you are just polluting even more.... it like crazy.
@@Alta9610 That's an explanation that makes no sense. Stratified injection out of balance? That's honestly not transferring any information about what the problem is. What's out of balance, the pilot injection? The main injection events? Why would any of them be out of balance (out of balance with respect to what, each other? against the perfect value?) Sure maybe the first time you start the engine, the pilot injection event might be wrong, and you will get some diesel knock on that cylinder (which happened to me), but the injection events are all self correcting. After driving on the highway for a while, the engine was back to super smooth at idle, so clearly the pilot injection event corrected itself. If the ECM can correct the pilot injection, which is completely useless apart from making the engine run quieter (and burn more fuel), then the ECM can easily correct the main fuel injection events. I maintain my speculation that the coding process is only there to make up for small discrepancies in the manufacturing of an injector. That way, as soon as an injector is plugged in, everything is setup perfectly, and requires no driving around before adaptations are learned (which is an important consideration given some states have mandatory smog testing). It's the same non-sense as needing to reset the adaptations after an air filter change. Like why would that matter? The air filters are before the mass airflow sensors. It's just dealership cash grabbing non-sense. To address your concern that it's polluting more. More than an injector stuck open dumping fuel into the cylinder? I doubt that very much. Here are the observed side effects of replacing the bad injector: fuel economy has gone up, and the DPF regens FAR less often. We're back to driving 1000km per tank, before that we would be doing about 800km. I'll welcome any criticism to my speculation, but decent arguments have to be made here. If my engine blows up as a result of this, the people subscribed to my channel will be the first to know...
This is horrible advice. Each injector is manufactured with certain tolerances that NEED to be compensated by the ECU so they deliver the right amount of fuel. You only replaced 1 injector and got lucky it had tolerances close to the ones your other injectors already had. This results are not reproducible to everyone when luck is involved, you can even see here on UA-cam videos of people showing how bad an engine can vibrate with a new set of uncalibrated injectors and how it smoothes out immediately after coding.
Will this fix itself with driving? Yes, as long as you are lucky and only need to replace 1 injector (good luck with a new set), after months of ruining your engine mounts, wasting a lot of fuel and clogging your cats, and having your check engine light on preventing you from knowing when anything else goes bad.
@@usuariu1024 Well someone has to try it to see if it will work. That's why I keep all these comments up on the video. Perhaps you raise a good point, and ideally coding should be done. However, the premise of the video was that I was starting with a much worse situation (an injector stuck open). All of my viewers which actually plan on using my advice are themselves DIYers that accept the risk of messing something up. This video is simply an experiment, which so far has worked out for me. We can't remove things that are potentially wrong, otherwise we will never know what is right.
No need for coding , I replace all my 6 injectors on a range river v6 engine and it just works fine .Ecu will learn GTE fuel Trina within few miles drive
@@jeanbatiste4533 Yeah for 1 it probably works fine (I mean it does, it's been 5 years and my mom's car is still going strong). But I can't imagine this working on a full set of injectors.
There's a service pdf I ran across that explains the injectors piezo crystal makeup. I understand now why they need to be coded after reading it. I have a lot of white smoke with six different injectors transplanted with another used motor. So, I am about to put the 6 original injectors back in this new motor because they have been coded and verified by the ecu.
Do you think you could share a link to the pdf? Lots of engines use piezo injectors which do not need to be coded. I'd be interested in giving it a read.
@@PatsCarGarage I will post it soon. I'm doing my injectors as we speak. They say only the diesels need coding. I guess because it relys on the compression to ignite vs. Throwing a spark. The crystal expansion/contraction inside these injectors aren't all the same from the factory. The coding is essential for the best timing for complete burn. Hense the smoke in my case.
@@zzacco Are you sure it's not smoking because it's doing a regen? If you had stuck injectors for a long time the DPF would be plugged up to the point the ECM would command a regen at idle.
@@PatsCarGarage I thought about that. I cant tell. I need to invest in a good scanner. Plus been wanting to do the gde dpf/egr DEL. That would rule it out. I'm learning alot however. I put the original coded injectors on this motor (to leaky to hold psi) opened up one and cleaned no difference. I'll do a few more before I give up and buy new ones.
@@zzacco I need to get myself a proper scanner too. I've got a basic OBD2 one for the C220 but it doesn't cut it for the ML. I would also to one day do a DPF/EGR deleteon the ML, I feel like it would improve mileage and reliability big time.
Official spec is 7Nm and then 90 degrees twice, but I've heard this weakens the bolt and might cause it to snap. I've personally done 7Nm and then 90 degrees once and it has held fine for 4ish years.
there are the same injector used in french cars peugeot hdi and for the programing the car will start and programing its will learn with time or any autel or maxisys scanner will do the job just the third row number not more five or six digit just follow the capital letters
Hi, I would be grateful if you can tell me how long did it take for ECU to learn how the new injectors performs, and to adopt itself? I've got 1 injector problem on my Peugeot 2.0 HDI 100 kW, I wiped the nozzle with a rag to remove the deposits and now it's running very rough. it even send a failure code for that particulate injector. The injector is not clogged, moreover there is zero return fuel coming from it.
Interesting ... Not saying I don’t beleive the video (but to my estonishment actualy you might be wright). I know quiet a bit about ecu tuning, but here’s a question for you. What do you beleive be the feedback loop for injector learning on this application ... very interesting... I know on some other diesel the feedback is done through the glow plugs (as they have a piezo integrared) to monitor peak presure point in relation to crank positioning sensor ...
I would of thought it used the pyrometer much like how on modern gas engines, they use the O2 sensor to trim individual cylinders (because you can correlate exhaust pulses with crank position as well). I must admit though, using the glowplugs would be brilliantly simpler though. I guess it would be a dead giveaway if the glow plugs had more than 2 wires going to them.
The issue with the pyrometer (egt sensor) is located after Cat (right before DPF) used fle feedback on Regen cycles. For example there is a map for EGT vs Voltage. Additionnaly, you can drive without the pyrometer (yes you’ll get a DTC) but the injection cycles won’t seem to be aftected. It remains a mistery how feedback is done to ecu on injector triming. But you are absolutely 100% correct. There is an adaptation that the ecu makes as soon as something is altered. There is 3 Main SOI maps (retareded) and 2 Main SOI maps fully advanced. The ecu calculates where to navigate between those 5 sets of maps. Sometime with one pilot injection, some time with 2 pilot and sometime with 3 (rarely). Then POI is also integrated (constant POI for passive regen and an additional POI for active regen based on mileage (every 1000km ish) and/or differential pressure sensor. No doubt this ecu is a mess ... if what you’ve experienced is still holding and you didn’t see any detorioration in fuel consumption, noise or driving behavior (shuddering), then you may be right there is a self adaptation done by the ecu on injectors trim ... very good finding you did here
@@coucouj2781 That's interesting, but no matter how it's done, I can still confirm that the engine is running butter smooth (can hardly tell it's a diesel, even at idle) and fuel economy seems to be inline with what it's supposed to be.
Good question, I honestly don't know. The only thing I can suggest is that these newer injectors are incredibly precisely machined, so it's probably best to leave it up to the pros.
Rebuild injectors getting a new code printed on the paper. If you not getting injector test flow means the dealer is the tiff and selling to you garbage not rebuild injector. On new or original injectors code is located on the plastic upper side numbers and alphabetical letters = 7 of them What you showing you completely lost - that spot is from manufacturing digital print of injector model. To code injectors are very important * buy on eBay or Aliexpress - Amazon * VIDENT iAuto 702 Pro * or ICarSoft MB V2 - 200.00$ To get injectors to look on eBay UK - Germany best price Never buy from American tiffs very expensive plus the charge for shipping 100 x or real cost. Something I do not understand in your words too much miracle we can expect This way system is not operate You can remove a couple of injectors and drive on or two injectors only. Nothing to learn only to code. Please be more mature and stop pushing Joe as theories.
How does the ECU trim the fuel for just ONE injector? By looking at the pre cat nox sensor which is per bank (and only one bank for this engine.) It might be better to just program it correctly. Not worth leaning other 5 injectors just to compensate for one. Just delete this video because it is just wrong. Sorry to say.
I think you are 100% right that it's better to program it correctly. I still research this because you and others have brought up good points. From what I can find, the programming exists because of emissions requirements, which are very strict, especially for diesel engines. Without this programming it would be impossible to meet these exact emissions requirements. With that being said, if the programming is off because you change injectors (or the shop that rebuilt the injector incorrectly tested it, producing a wrong code), it's not going to dump the contents of your fuel tank after 17 turns of the crankshaft. So how could the ECM compensate trim a single injector? 2 possible ways: the glow plugs aren't completely dumb and have some capacity to monitor cylinder temperature, or the exhaust pulses are correlated by the EGT sensor. Now, if you are mad about the emissions side, I think you'd better leave some comments on people doing DPF / EGR deletes.
I bought this one from RockAuto. It was their last one left though. These injectors are really hard to find in the rebuilt market right now, there isn't a lot of them floating around, and nobody is buying new ones because they are stupidly expensive. You can either try shopping around, or you can try to find a Bosch certified service center to have them rebuild it.
Look on eBay lots from Germany can get very good injectors or from the UK * do not touch injectors from USA or Canada * Simple Joe without the ideas how to do a proper job.* Average cost 150-200$
@@davidnewman7014 Yes sure - how much cost each one? I get a new one for 175 euros - in the real world no rebuild piezo injectors, scam operators cleaning old injectors charging a fortune - It is very important to use diesel additives to clean and lubricate injectors and high-pressure pumps.- I like my injectors showing 100% operational in Bosch specifications - water in diesel fuel is the main killer of the piezo element in the injector - professionals so rebuild injectors saying up to 150K km can last only - my friend ML350 350K km and injectors perfect.
Why are you spreading this disinformation? Better keep for your self or go to school and learn proper mechanics. Injector coding is very important * computer can know when to inject fuel and how much. Sample injector with more fuel flow becomes triggered later Injector with less fuel flow getting triggered early to complete the combustion cycle. Those high tech new generation injectors are impossible to make equal all of them Every injector has difference for that reason coding is so important. You can run the engine with not coded injectors = tell me after some time about your engine or PDF?
Ok well lets address all your issues. The premise of my video is that you have a larger problem (as I had). In my case, I had a fuel injector stuck open, dumping fuel into the cylinder. That is clearly much worse than a miscoded injector. Now unfortunately, most shops will only sell you brand new injectors, which are VERY expensive. I found a source to get rebuild ones, however that means I would have to put them in myself, and as I don't have a scanner which can code the injectors, the question is... Can you do this (not should you do this). Given the circumstances, I opted to try... and it works quite well. It has been about 1.5 years now since I did this, and I've never coded the injectors, and I've had 0 problems. The engine regens the DPF at normal intervals too (hardly ever during summer, more often during winter). Now, should you do this? I understand the need to have this done. Whenever a car needs to be emissions tested, this has to be done because you want the injectors to be firing optimally as soon as they are installed (so you can proceed with testing). Now, I know a few things about engine management software. You can very easily trim individual injectors with time (fuel trims have existed since electronics took over fuel injection, individual trims are slightly newer, but by the mid 2000's most cars had this). So I reckon that with time the injector will be trimmed correctly and there won't be a problem (but it would not work immediately, say during an emissions inspection you discover you have an injector issue, and you change it out right away). Now this is a guess, however it is what I observed with my own car. There are multiple injection events per combustion cycle (around 5 on modern diesels). The pilot injection was indeed incorrect when I first fired the engine up, that cylinder was noticeably louder, this I confirmed with a stethoscope. However, after a long ride on the highway, this problem cleared itself away. If this all blows up, I'll be the first to post it here. As I said, so far it has been perfectly fine for 1.5 years, and since then the car has done about 20k km, so I'm not overly concerned about it. In summary, not coding the injectors can get you out of a pinch. If you don't sleep well at night, you can always code it after the fact.
@@PatsCarGarage I know what scam business can do - all of them are uneducated simple tiffs *** What so ever your problem was *** When we replacing injector needs to cod that injector - during the rebuild of injector must be tested flow rate - this gives codes * Some peoples do not know this - not have a tool - or just drive - Good scanner iCarsoft MB V2 (Mercedes - Sprinter - Smart - Only) or Vident iAuto 702Pro Professional OBD2 Scanner - can do codding plus other modes as need on Mercedes BMW Plus more
No need coding as I gave a Range Rover sport tdv6 3.0 v6 engine and I replaced all 6 injectors and it fires up bang on no shaking or smoke or anything it just works fine . He said right that Ecu will learn may in just in a few miles drive Ecu will collaborate it itself
@@luxurycarpets4028 Oh yes sure only replace the injector and engine going to work. No problem for you and problem with emission and fuel consumption. If you know how the system is working you never go to argue. I give you a sample - replace the tire and not do balance. Sure you can drive the car.
Hey i have the same problem I change injector#1 because i was having hard start but after changing there is no more hard start but car is smoking white smoke 💨.
So if we omit the part where you utter insults without bothering to simply ask a question, here is why: There is a broad misconception that not coding your injectors will lead to an imminent catastrophe comparable to the extinction of the dinosaurs. I've set out to disprove this. Is it better to code your injectors? Absolutely, however, if for whatever reason you can't; let's say an injector failed in your home's garage and you need to replace it before even being able to code it, is it ok not to do so? The answer is yes, since I've posted this video I still haven't coded the injectors on this car, and guess what, it's still running just fine. So if you need to swap injectors, and can only have them coded afterwards, you should be comfortable in knowing that it's safe to do. You should also be happy about this outcome yourself, it means your car is maintainable without any specialized tools, which is an outcome we should all be striving towards.
BRILLIANT EXPLANATION!
Just what i was looking for.
Thank you from Rome
That's great news Pat! Thank you for sharing and giving the update. I have an 05 e320 cdi and replacement parts don't have to be flashed like the more modern MBs. Its infuriating that they designed them that way. I will be buying an 07 gl320 cdi in the next couple days and just wanted to research all I could to see what all I'd be able to do should I need to repair. Like you I am a big DIYer. I too plan on doing the dpf and egr delete. Another absolutely infuriating addition to diesels. I wish they would bring back the inline engines like the om648 and those like them. God bless and good on ya!
I would totally do a EGR / DPF delete on the ML (maybe even a bluetec turbo too, it's bigger). It's my mom's car though, so I'll let it be for now...
Seemingly merc HAS went back to i6......
I put a set of new denso injectors into my old hilux ute, along with valve seals and rocker cover gasket and an oil change while im there, and it ran beautifully. Excellent improvement to the vehicle. Much better and smooth responsive acceleration. ...that was two days ago. Today i took it to a mechanic to enter the codes. Tonight i crawl home with terminal engine knock in a heavy cloud of smoke. F;#k the codes. Honestly, ive been doing all the work and NEVER trusted a mechanic. The VERY SAME afternoon i take my car for the first time to a mechanic, its broken. I cant afford these 'professional advice'. So mad my beautiful car that i worked hard on making sure all the ports were so clean and everything torqued to spec and it ran so well...now its a bomb. Literally.
This might be acase on earlier Mercedes diesel engines I’m currently working on a 2017 Sprinter OEM 651 after multiple tries engine definitely not starting with replacement injectors so we gonna go through a process of re-coding replacement injectors and see how we go I also see new videos popping up about the same issue
If you need to take car to dealer to diagnose it tells alot about your skills. Even tools on your table :D Here in Europe we have a lot diesel engines and every one know that best and easy way is to code new or refurbished injector/s to car ecu and letvit know new ima code with new flow rates. It is properly done way not abusing your engine, dpf and all fuel injection system driving with over fueling injectors for months. Why? You can eat soup with fork or with spoon it is your choice
It's almost as if nobody watches the video before commenting...
What you've written tells us so much about your education, or lack thereof.
Great Video and god Bless pat,,,
As a injector repair guy, yes you better of coding them in. If you don’t code it in injector will run out off tolerance. If you don’t code it in car either not run smoothly as or not run as efficiently.
Thats why after every reconditioning we do, test bench gives new codes.
Wrong advise to tell not to code it in.
It's been 4 years, car still works fine, runs smoothly, runs as efficiently as it always did.
@@PatsCarGarage If so, ever injector brands or remanufactures or diesel specialists are wrong by advising to code it in but you are the only one right by saying better not to code in. All new test benches calibrate and gives code for new tolerances for notting?. You are fitting brand new injectors but not coding , its a bit cowboy job to me.
@@emrahsavuk4784 Of course it's better to code them. It's just there's this belief on the internet that if you don't code them, your connecting rods will fly out the side of the block. They won't, it's been 4 years, if you're in a pinch and can't code the injectors for whatever reason, it's going to be fine.
@@PatsCarGarage
Hello.
UK Guy here.
I have an 06 W164 4Matic and need the original injectors cleaning. If I take them out and professionally cleaned will they need coding when put back in?
Thanks in advance.
@@winstonbrown1516 I don't believe that cleaning will require them to be coded. Just make sure you mark which injector came out of which cylinder so you don't mix them up.
Mercedes Benz E class 2021, Check engine light is ON, replaced injector 3 after checked up. I didn’t do programming for new injector, the check engine light still ON, so have I programming the new injector ? Or what should I do to Check Engine OFF ?
i just put a full set of new injectors in my citroen relay and didn't code them runs like brand new.
Hi Pat, Where did you get the injector for $350? Thanks!
These injectors are on 2013 mercedes sprinter 3500
company in germany rebuilds and properly calibrates injectors for about £120 + £30 refundable deposit once they receive old injector. prices in Canada (and states) are just insane.
Yeah that was sort of my motivation for this video. Diesel engines are just not popular at all in NA, apart from the occasional pickup truck.
Hey man, my car wont start after I replaced the seals... do i have to purge air or anything ?
You can run it on key on (which runs the electric fuel pump) for a while. You'll hear the air bubbles being forced out. Once the rush of air bubbles goes away, you can try cranking the engine, which will also run the high pressure fuel pump, but it might not start for a while. When I replaced all my injector seals I had to crank the engine for a good 2 minutes before it started. Give your starter some breaks of course.
Hey Pat, thanks for the video! I have SDS and was still unable to code my replacement injectors for my 12 ML350 BT. Took the car for a light spin and will keep driving it with the hope the trim on the CDI 6 ME will do its magic. Any chance you can make a video on how you run Diesel Purge? Right in the tank or through the filter? Thanks!
I just dunk 2 cans into the fuel tank and then fill it up so it's mixed well.
This is straight up bad advise. Code the injectors when installing.
Can you elaborate? I'm going on a year without any issues so far...
Pat's Car Garage the stratified injection gets out of balance... you almost can not tell the difference , you are just polluting even more.... it like crazy.
@@Alta9610 That's an explanation that makes no sense. Stratified injection out of balance? That's honestly not transferring any information about what the problem is. What's out of balance, the pilot injection? The main injection events? Why would any of them be out of balance (out of balance with respect to what, each other? against the perfect value?) Sure maybe the first time you start the engine, the pilot injection event might be wrong, and you will get some diesel knock on that cylinder (which happened to me), but the injection events are all self correcting. After driving on the highway for a while, the engine was back to super smooth at idle, so clearly the pilot injection event corrected itself. If the ECM can correct the pilot injection, which is completely useless apart from making the engine run quieter (and burn more fuel), then the ECM can easily correct the main fuel injection events.
I maintain my speculation that the coding process is only there to make up for small discrepancies in the manufacturing of an injector. That way, as soon as an injector is plugged in, everything is setup perfectly, and requires no driving around before adaptations are learned (which is an important consideration given some states have mandatory smog testing). It's the same non-sense as needing to reset the adaptations after an air filter change. Like why would that matter? The air filters are before the mass airflow sensors. It's just dealership cash grabbing non-sense.
To address your concern that it's polluting more. More than an injector stuck open dumping fuel into the cylinder? I doubt that very much. Here are the observed side effects of replacing the bad injector: fuel economy has gone up, and the DPF regens FAR less often. We're back to driving 1000km per tank, before that we would be doing about 800km.
I'll welcome any criticism to my speculation, but decent arguments have to be made here. If my engine blows up as a result of this, the people subscribed to my channel will be the first to know...
This is horrible advice. Each injector is manufactured with certain tolerances that NEED to be compensated by the ECU so they deliver the right amount of fuel. You only replaced 1 injector and got lucky it had tolerances close to the ones your other injectors already had. This results are not reproducible to everyone when luck is involved, you can even see here on UA-cam videos of people showing how bad an engine can vibrate with a new set of uncalibrated injectors and how it smoothes out immediately after coding.
Will this fix itself with driving? Yes, as long as you are lucky and only need to replace 1 injector (good luck with a new set), after months of ruining your engine mounts, wasting a lot of fuel and clogging your cats, and having your check engine light on preventing you from knowing when anything else goes bad.
It's been 2 years, car works fine without any check engine lights since...
@@PatsCarGarage worked out fine for you, but giving this as advice is very irresponsible
@@usuariu1024 Well someone has to try it to see if it will work. That's why I keep all these comments up on the video. Perhaps you raise a good point, and ideally coding should be done. However, the premise of the video was that I was starting with a much worse situation (an injector stuck open). All of my viewers which actually plan on using my advice are themselves DIYers that accept the risk of messing something up. This video is simply an experiment, which so far has worked out for me. We can't remove things that are potentially wrong, otherwise we will never know what is right.
No need for coding , I replace all my 6 injectors on a range river v6 engine and it just works fine .Ecu will learn GTE fuel Trina within few miles drive
do gasoline fuel injector need coding ?
What if you have to replace all of them?
pray
@@PatsCarGarage 😂😂😂 thanks
@@PatsCarGarage I asked cuz I don't have a scanner 😂😂.
@@jeanbatiste4533 Yeah for 1 it probably works fine (I mean it does, it's been 5 years and my mom's car is still going strong). But I can't imagine this working on a full set of injectors.
@@PatsCarGarage Thanks for your reply appreciated greetings from Mexico!
There's a service pdf I ran across that explains the injectors piezo crystal makeup. I understand now why they need to be coded after reading it. I have a lot of white smoke with six different injectors transplanted with another used motor. So, I am about to put the 6 original injectors back in this new motor because they have been coded and verified by the ecu.
Do you think you could share a link to the pdf? Lots of engines use piezo injectors which do not need to be coded. I'd be interested in giving it a read.
@@PatsCarGarage I will post it soon. I'm doing my injectors as we speak. They say only the diesels need coding. I guess because it relys on the compression to ignite vs. Throwing a spark. The crystal expansion/contraction inside these injectors aren't all the same from the factory. The coding is essential for the best timing for complete burn. Hense the smoke in my case.
@@zzacco Are you sure it's not smoking because it's doing a regen? If you had stuck injectors for a long time the DPF would be plugged up to the point the ECM would command a regen at idle.
@@PatsCarGarage I thought about that. I cant tell. I need to invest in a good scanner. Plus been wanting to do the gde dpf/egr DEL. That would rule it out. I'm learning alot however. I put the original coded injectors on this motor (to leaky to hold psi) opened up one and cleaned no difference. I'll do a few more before I give up and buy new ones.
@@zzacco I need to get myself a proper scanner too. I've got a basic OBD2 one for the C220 but it doesn't cut it for the ML. I would also to one day do a DPF/EGR deleteon the ML, I feel like it would improve mileage and reliability big time.
what is the torque specs of the bolts do you know?
Official spec is 7Nm and then 90 degrees twice, but I've heard this weakens the bolt and might cause it to snap. I've personally done 7Nm and then 90 degrees once and it has held fine for 4ish years.
there are the same injector used in french cars peugeot hdi
and for the programing
the car will start and programing its will learn with time
or any autel or maxisys scanner will do the job just the third row number not more five or six digit just follow the capital
letters
Hi, I would be grateful if you can tell me how long did it take for ECU to learn how the new injectors performs, and to adopt itself? I've got 1 injector problem on my Peugeot 2.0 HDI 100 kW, I wiped the nozzle with a rag to remove the deposits and now it's running very rough. it even send a failure code for that particulate injector. The injector is not clogged, moreover there is zero return fuel coming from it.
Interesting ... Not saying I don’t beleive the video (but to my estonishment actualy you might be wright). I know quiet a bit about ecu tuning, but here’s a question for you. What do you beleive be the feedback loop for injector learning on this application ... very interesting... I know on some other diesel the feedback is done through the glow plugs (as they have a piezo integrared) to monitor peak presure point in relation to crank positioning sensor ...
I would of thought it used the pyrometer much like how on modern gas engines, they use the O2 sensor to trim individual cylinders (because you can correlate exhaust pulses with crank position as well). I must admit though, using the glowplugs would be brilliantly simpler though. I guess it would be a dead giveaway if the glow plugs had more than 2 wires going to them.
The issue with the pyrometer (egt sensor) is located after Cat (right before DPF) used fle feedback on Regen cycles. For example there is a map for EGT vs Voltage. Additionnaly, you can drive without the pyrometer (yes you’ll get a DTC) but the injection cycles won’t seem to be aftected. It remains a mistery how feedback is done to ecu on injector triming. But you are absolutely 100% correct. There is an adaptation that the ecu makes as soon as something is altered. There is 3 Main SOI maps (retareded) and 2 Main SOI maps fully advanced. The ecu calculates where to navigate between those 5 sets of maps. Sometime with one pilot injection, some time with 2 pilot and sometime with 3 (rarely). Then POI is also integrated (constant POI for passive regen and an additional POI for active regen based on mileage (every 1000km ish) and/or differential pressure sensor. No doubt this ecu is a mess ... if what you’ve experienced is still holding and you didn’t see any detorioration in fuel consumption, noise or driving behavior (shuddering), then you may be right there is a self adaptation done by the ecu on injectors trim ... very good finding you did here
@@coucouj2781 That's interesting, but no matter how it's done, I can still confirm that the engine is running butter smooth (can hardly tell it's a diesel, even at idle) and fuel economy seems to be inline with what it's supposed to be.
Good video. Is it possible to repair or clean them by yourself?
Good question, I honestly don't know. The only thing I can suggest is that these newer injectors are incredibly precisely machined, so it's probably best to leave it up to the pros.
Rebuild injectors getting a new code printed on the paper.
If you not getting injector test flow means the dealer is the tiff and selling to you garbage not rebuild injector.
On new or original injectors code is located on the plastic upper side numbers and alphabetical letters = 7 of them
What you showing you completely lost - that spot is from manufacturing digital print of injector model.
To code injectors are very important * buy on eBay or Aliexpress - Amazon * VIDENT iAuto 702 Pro * or ICarSoft MB V2 - 200.00$
To get injectors to look on eBay UK - Germany best price
Never buy from American tiffs very expensive plus the charge for shipping 100 x or real cost.
Something I do not understand in your words too much miracle we can expect
This way system is not operate
You can remove a couple of injectors and drive on or two injectors only.
Nothing to learn only to code.
Please be more mature and stop pushing Joe as theories.
Yesss let the hate flow through you
@@PatsCarGarage Do you seen a doctor lately?
@@jaguar7051 Honestly that's the most pathetic attempt at an insult I've seen in a long time. Try again.
cool vid. thanks.
How does the ECU trim the fuel for just ONE injector? By looking at the pre cat nox sensor which is per bank (and only one bank for this engine.) It might be better to just program it correctly. Not worth leaning other 5 injectors just to compensate for one.
Just delete this video because it is just wrong. Sorry to say.
I think you are 100% right that it's better to program it correctly. I still research this because you and others have brought up good points. From what I can find, the programming exists because of emissions requirements, which are very strict, especially for diesel engines. Without this programming it would be impossible to meet these exact emissions requirements. With that being said, if the programming is off because you change injectors (or the shop that rebuilt the injector incorrectly tested it, producing a wrong code), it's not going to dump the contents of your fuel tank after 17 turns of the crankshaft.
So how could the ECM compensate trim a single injector? 2 possible ways: the glow plugs aren't completely dumb and have some capacity to monitor cylinder temperature, or the exhaust pulses are correlated by the EGT sensor.
Now, if you are mad about the emissions side, I think you'd better leave some comments on people doing DPF / EGR deletes.
@@PatsCarGarage No hard time. I am not a hater. I appreciate u actually spent time and effort creating videos to share knowledge.
Where did you purchase this rebuilt injector from?
I bought this one from RockAuto. It was their last one left though. These injectors are really hard to find in the rebuilt market right now, there isn't a lot of them floating around, and nobody is buying new ones because they are stupidly expensive. You can either try shopping around, or you can try to find a Bosch certified service center to have them rebuild it.
Look on eBay lots from Germany can get very good injectors or from the UK * do not touch injectors from USA or Canada * Simple Joe without the ideas how to do a proper job.* Average cost 150-200$
@@jaguar7051 there in Ireland plenty of used ones may not last as long as new but half the price helps
@@davidnewman7014 Yes sure - how much cost each one? I get a new one for 175 euros - in the real world no rebuild piezo injectors, scam operators cleaning old injectors charging a fortune - It is very important to use diesel additives to clean and lubricate injectors and high-pressure pumps.- I like my injectors showing 100% operational in Bosch specifications - water in diesel fuel is the main killer of the piezo element in the injector - professionals so rebuild injectors saying up to 150K km can last only - my friend ML350 350K km and injectors perfect.
Why are you spreading this disinformation?
Better keep for your self or go to school and learn proper mechanics.
Injector coding is very important * computer can know when to inject fuel and how much.
Sample injector with more fuel flow becomes triggered later
Injector with less fuel flow getting triggered early to complete the combustion cycle.
Those high tech new generation injectors are impossible to make equal all of them
Every injector has difference for that reason coding is so important.
You can run the engine with not coded injectors = tell me after some time about your engine or PDF?
Ok well lets address all your issues.
The premise of my video is that you have a larger problem (as I had). In my case, I had a fuel injector stuck open, dumping fuel into the cylinder. That is clearly much worse than a miscoded injector. Now unfortunately, most shops will only sell you brand new injectors, which are VERY expensive. I found a source to get rebuild ones, however that means I would have to put them in myself, and as I don't have a scanner which can code the injectors, the question is... Can you do this (not should you do this). Given the circumstances, I opted to try... and it works quite well. It has been about 1.5 years now since I did this, and I've never coded the injectors, and I've had 0 problems. The engine regens the DPF at normal intervals too (hardly ever during summer, more often during winter).
Now, should you do this? I understand the need to have this done. Whenever a car needs to be emissions tested, this has to be done because you want the injectors to be firing optimally as soon as they are installed (so you can proceed with testing).
Now, I know a few things about engine management software. You can very easily trim individual injectors with time (fuel trims have existed since electronics took over fuel injection, individual trims are slightly newer, but by the mid 2000's most cars had this). So I reckon that with time the injector will be trimmed correctly and there won't be a problem (but it would not work immediately, say during an emissions inspection you discover you have an injector issue, and you change it out right away). Now this is a guess, however it is what I observed with my own car. There are multiple injection events per combustion cycle (around 5 on modern diesels). The pilot injection was indeed incorrect when I first fired the engine up, that cylinder was noticeably louder, this I confirmed with a stethoscope. However, after a long ride on the highway, this problem cleared itself away.
If this all blows up, I'll be the first to post it here. As I said, so far it has been perfectly fine for 1.5 years, and since then the car has done about 20k km, so I'm not overly concerned about it.
In summary, not coding the injectors can get you out of a pinch. If you don't sleep well at night, you can always code it after the fact.
@@PatsCarGarage I know what scam business can do - all of them are uneducated simple tiffs *** What so ever your problem was *** When we replacing injector needs to cod that injector - during the rebuild of injector must be tested flow rate - this gives codes * Some peoples do not know this - not have a tool - or just drive - Good scanner iCarsoft MB V2 (Mercedes - Sprinter - Smart - Only) or Vident iAuto 702Pro Professional OBD2 Scanner - can do codding plus other modes as need on Mercedes BMW Plus more
BS
No need coding as I gave a Range Rover sport tdv6 3.0 v6 engine and I replaced all 6 injectors and it fires up bang on no shaking or smoke or anything it just works fine . He said right that Ecu will learn may in just in a few miles drive Ecu will collaborate it itself
@@luxurycarpets4028 Oh yes sure only replace the injector and engine going to work.
No problem for you and problem with emission and fuel consumption.
If you know how the system is working you never go to argue.
I give you a sample - replace the tire and not do balance.
Sure you can drive the car.
Hey i have the same problem I change injector#1 because i was having hard start but after changing there is no more hard start but car is smoking white smoke 💨.
It's possible the DPF is going through a regen. You should wait a little bit and see if it clears up on its own.
Good video
I like the old fashioned injectors. It's all BS those ECU codes for injectors
Wby they doing videos withoit proper job like coding?
All these people are crazy when they are shoving without coplete procedures... Poor mechanics
So if we omit the part where you utter insults without bothering to simply ask a question, here is why: There is a broad misconception that not coding your injectors will lead to an imminent catastrophe comparable to the extinction of the dinosaurs. I've set out to disprove this. Is it better to code your injectors? Absolutely, however, if for whatever reason you can't; let's say an injector failed in your home's garage and you need to replace it before even being able to code it, is it ok not to do so? The answer is yes, since I've posted this video I still haven't coded the injectors on this car, and guess what, it's still running just fine. So if you need to swap injectors, and can only have them coded afterwards, you should be comfortable in knowing that it's safe to do. You should also be happy about this outcome yourself, it means your car is maintainable without any specialized tools, which is an outcome we should all be striving towards.
Makes zero difference.
Sorry but this bullshit
no you