hi all my car has only today given this code and I can't make it go away, so far I have changed the injector in cylinder 3 for a known working one to no avail.
before people start saying this has been covered elsewhere go and look for it I haven't got the time to trawl through possibly thousands of other peoples posts that have had the same issue I need answers where I can find it asap.
lets start by saying I have replaced all the injectors in my car as when I bought it they were bad ones they had excessive leak back which meant the car was a pain to start warm or cold.
the Injectors I used were known working ones from another car I own which I new started and ran well.
now my current car with the fault is a 2004 54 plate tdci 130 euro IV if i'm correct with electronic EGR and Electronic Turbo Actuator
the Injectors were the original from the factory as they matched the codes on the sticker that is attached to the engine and are code 504Z's the injectors that I put in there were from my other tdci 130 2004 04 plate euro III I believe with manual EGR and Vacuum Turbo Actuator and were re-manufactured Delphi injectors with code 501Z I know they were re-manufactured ones as they have Reman on them and don't match the sticker on the engine. after changing them over (putting them in the same order as I took them out of the other engine) and coding them in the car although started with a misfire ran with no codes whatsoever and the misfire cleared itself without causing any issues and the car ran well.
a couple of weeks ago I got reading about cleaning the injectors so I thought what do I have to loose the 504Z's were no good I'll see if I can revive them so I set about cleaning them all four were taken apart (one at a time) and reassembled after cleaning them with a clean dry cloth nothing else. I then put them back into the engine in there original order and coded them in one by one and the car ran ok when warm and still didn't give any issues and even started better when warm aswell so I let it go cold, next day bad starting was still there when cold but the car did run without fault codes.
so I started to put the others back in in a different order number 1 still no problems or fault codes then number 2 again no problems and still no fault codes and it felt more responsive and felt like it had more power too which I now know to be because the 501Z's don't give much fuel out across the whole rev range where as the 504Z's do (got searching for answers again)
my question is could having a mixture of 504Z's and 501Z's have corrupted the ecu or would it be fine to have this mixture?
before I got the code I replaced number 4 from a 504Z to a 501Z which the car ran ok if not better without giving the code and has been fine for at least 2 days like this until today.
once I got the code P2338 Cylinder #3 above knock threshold I first tried recoding all the injectors by first of all setting all of the codes to 0's in the Injector control ecu and then recoding the injectors back in one by one not attempting to start until all codes were redone to see if that would clear it but no still there so then I put the final 501Z in to number 3 and it made no difference and the code will not erase regardless of which injector I replace. first I replaced number 3 which still had a 504Z the only cylinder to do so by this time then once that made no difference I replaced cylinder 1 with the 504Z I took out of cylinder 3, I only changed cylinder 1 as this was the cylinder making all the noise no other reason but still the code still remains and will not go away so the glow plug light is flashing from the moment you turn the key even though I have tried clearing it since changing injectors and before starting the engine each time I changed an injector (don't even have to start the engine for it to flash away) and I have reduced power.
I need this fixed asap as I don't have any other car and I need to use this every day for work. also I don't have a lot of money so buying injectors is out of the question.
before people start saying this has been covered elsewhere go and look for it I haven't got the time to trawl through possibly thousands of other peoples posts that have had the same issue I need answers where I can find it asap.
lets start by saying I have replaced all the injectors in my car as when I bought it they were bad ones they had excessive leak back which meant the car was a pain to start warm or cold.
the Injectors I used were known working ones from another car I own which I new started and ran well.
now my current car with the fault is a 2004 54 plate tdci 130 euro IV if i'm correct with electronic EGR and Electronic Turbo Actuator
the Injectors were the original from the factory as they matched the codes on the sticker that is attached to the engine and are code 504Z's the injectors that I put in there were from my other tdci 130 2004 04 plate euro III I believe with manual EGR and Vacuum Turbo Actuator and were re-manufactured Delphi injectors with code 501Z I know they were re-manufactured ones as they have Reman on them and don't match the sticker on the engine. after changing them over (putting them in the same order as I took them out of the other engine) and coding them in the car although started with a misfire ran with no codes whatsoever and the misfire cleared itself without causing any issues and the car ran well.
a couple of weeks ago I got reading about cleaning the injectors so I thought what do I have to loose the 504Z's were no good I'll see if I can revive them so I set about cleaning them all four were taken apart (one at a time) and reassembled after cleaning them with a clean dry cloth nothing else. I then put them back into the engine in there original order and coded them in one by one and the car ran ok when warm and still didn't give any issues and even started better when warm aswell so I let it go cold, next day bad starting was still there when cold but the car did run without fault codes.
so I started to put the others back in in a different order number 1 still no problems or fault codes then number 2 again no problems and still no fault codes and it felt more responsive and felt like it had more power too which I now know to be because the 501Z's don't give much fuel out across the whole rev range where as the 504Z's do (got searching for answers again)
my question is could having a mixture of 504Z's and 501Z's have corrupted the ecu or would it be fine to have this mixture?
before I got the code I replaced number 4 from a 504Z to a 501Z which the car ran ok if not better without giving the code and has been fine for at least 2 days like this until today.
once I got the code P2338 Cylinder #3 above knock threshold I first tried recoding all the injectors by first of all setting all of the codes to 0's in the Injector control ecu and then recoding the injectors back in one by one not attempting to start until all codes were redone to see if that would clear it but no still there so then I put the final 501Z in to number 3 and it made no difference and the code will not erase regardless of which injector I replace. first I replaced number 3 which still had a 504Z the only cylinder to do so by this time then once that made no difference I replaced cylinder 1 with the 504Z I took out of cylinder 3, I only changed cylinder 1 as this was the cylinder making all the noise no other reason but still the code still remains and will not go away so the glow plug light is flashing from the moment you turn the key even though I have tried clearing it since changing injectors and before starting the engine each time I changed an injector (don't even have to start the engine for it to flash away) and I have reduced power.
I need this fixed asap as I don't have any other car and I need to use this every day for work. also I don't have a lot of money so buying injectors is out of the question.
