Car won't stay on for long
#1
Car won't stay on for long
Hello there! My 8 is a 04, I change the coils and did an upgrade to the ls2 coils, with the harness and everything, I was having a issues with the old coils, they were getting hot and you can hear it cracking after the car turn off and not starting back until it cools down, so I changed it, did the upgrade and the problem go worst, now when I turn the car on it only stays on for like less than a minute, have one guy saying that the next thing could be the ecu, but I don't feel like wasting my money and my time for a new ecu if their is no need for, hope somebody can help me, I'm desperate for help, thanks in advance
#4
Yes we did a compression test and it was good, no it doesn't have any mods at all, the thing is that we can not scan it because is not staying on long enough to give us a code, but it shouldn't be the ECU then, because if it was the ecu it won't even start, right?, thanks for the help, any more will be appreciated
#5
Yes, all that too, we even try with another set of coils with wires, and it did the same thing, and what's CEL, I'm bad with acronyms, but we did a compression test and it was fine
#6
Time for boost...
iTrader: (24)
CEL= check engine light.
verify that your MAF (mass air flow) sensor isn't damaged and that the air filter isn't clogged. Make sure your intake tubes are all connected securely and no cracks. Check and clean your eccentric shaft position sensor (commonly ess or esps).
EDIT: Lastly, read the following links:
https://www.rx8club.com/new-member-f...t-here-202454/
https://www.rx8club.com/new-member-f...ot-8-a-202548/
https://www.rx8club.com/new-member-f...%2A%2A-245479/
verify that your MAF (mass air flow) sensor isn't damaged and that the air filter isn't clogged. Make sure your intake tubes are all connected securely and no cracks. Check and clean your eccentric shaft position sensor (commonly ess or esps).
EDIT: Lastly, read the following links:
https://www.rx8club.com/new-member-f...t-here-202454/
https://www.rx8club.com/new-member-f...ot-8-a-202548/
https://www.rx8club.com/new-member-f...%2A%2A-245479/
#7
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Join Date: Feb 2016
Location: Carson City, NV
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Yes we did a compression test and it was good, no it doesn't have any mods at all, the thing is that we can not scan it because is not staying on long enough to give us a code, but it shouldn't be the ECU then, because if it was the ecu it won't even start, right?, thanks for the help, any more will be appreciated
A lot of ECUs that are diagnosed faulty aren't necessary, it's more often a wiring or sensor issue. If it's one of those then yes, it's entirely possible that you can start the engine and it'll die soon after.
What sort of numbers did you get on the compression test?
#8
CEL= check engine light.
verify that your MAF (mass air flow) sensor isn't damaged and that the air filter isn't clogged. Make sure your intake tubes are all connected securely and no cracks. Check and clean your eccentric shaft position sensor (commonly ess or esps).
EDIT: Lastly, read the following links:
https://www.rx8club.com/new-member-f...t-here-202454/
https://www.rx8club.com/new-member-f...ot-8-a-202548/
https://www.rx8club.com/new-member-f...%2A%2A-245479/
verify that your MAF (mass air flow) sensor isn't damaged and that the air filter isn't clogged. Make sure your intake tubes are all connected securely and no cracks. Check and clean your eccentric shaft position sensor (commonly ess or esps).
EDIT: Lastly, read the following links:
https://www.rx8club.com/new-member-f...t-here-202454/
https://www.rx8club.com/new-member-f...ot-8-a-202548/
https://www.rx8club.com/new-member-f...%2A%2A-245479/
#9
You should be able to read any fault codes without running the engine, so I'm not sure what you mean by "we can not scan it because is not staying on long enough to give us a code". Either way you should see a CEL.
A lot of ECUs that are diagnosed faulty aren't necessary, it's more often a wiring or sensor issue. If it's one of those then yes, it's entirely possible that you can start the engine and it'll die soon after.
What sort of numbers did you get on the compression test?
A lot of ECUs that are diagnosed faulty aren't necessary, it's more often a wiring or sensor issue. If it's one of those then yes, it's entirely possible that you can start the engine and it'll die soon after.
What sort of numbers did you get on the compression test?
#10
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iTrader: (1)
If you've completely ruled out a vacuum or unmetered air leak and cleaned the MAF sensor, try cleaning the Eccentric Shaft Sensor. But I still think it's a vacuum leak. There are a few fiddly small vacuum tubes around the air box which you would have had to remove and maybe forgotten to plug back in.
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