A4 1.8t AEB warm start issues
07-23-2006, 12:48 PM
#1
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A4 1.8t AEB warm start issues
This is something that has plaqued my car from day one. If the car is hot and you turn it off and let it sit for awhile then start it again the idle gets all funky and when driving it starts to mis fire. A perfect example is like spraying an older honda distributor with the hose and the car gets erratic.
This problem happens year round and is intermitent and doesnt throw any codes.
After you punch the pedal and give it some boost the problem goes away.
I have also noticed the car will sometimes have problems starting and will not start right away like it use to.
I have replaced just about everything trying to identify the issue.
MAF
FPRelay
Vaccum Hoses
Suction Pump
Ignitor
N75
B1&2 O2 Sensors
CTS
Bla bla bla
Still the issue has not been identified, I know im not the only one because my mechanic has a TT with the same issue and we are not able to address the issue.
Any help would be appreciated?
This problem happens year round and is intermitent and doesnt throw any codes.
After you punch the pedal and give it some boost the problem goes away.
I have also noticed the car will sometimes have problems starting and will not start right away like it use to.
I have replaced just about everything trying to identify the issue.
MAF
FPRelay
Vaccum Hoses
Suction Pump
Ignitor
N75
B1&2 O2 Sensors
CTS
Bla bla bla
Still the issue has not been identified, I know im not the only one because my mechanic has a TT with the same issue and we are not able to address the issue.
Any help would be appreciated?
07-23-2006, 09:27 PM
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The original CTS was Blue and I replaced it through the dealer with an
dark green color everyone was saying get the light green but the connector would not fit. The dealer said the dark green is the replacement. If you know something tell me.
07-23-2006, 09:31 PM
#6
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You got the right CTS, because I have the same one. The 501-A is the wrong one and I was told
the same too, then found the 501 is the right one (dark green).
If its misfiring, you should be throwing codes. I'd check the ICM on top of the airbox.
If its misfiring, you should be throwing codes. I'd check the ICM on top of the airbox.
07-23-2006, 10:10 PM
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I replaced the ICU (Ignitor) with an aftermarket unit called HUCO
I replaced it because #3 wasnt firing. I dont think thats the problem because this issue has been going on for 3 years or day 1 of ownership. The Huco is less than 1 year old and the problem didnt go away.
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07-24-2006, 12:45 AM
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When your friend is a mechanic and helps you out for little money
looking else where is difficult. Plus a Vag Com at one mechanic is the same Vag Com at my mechanic. Oh and by the way I just purchased my own Vag and still get no results.
Maybe I should bring it to Audi and get humped really good, what do you say?
Maybe I should bring it to Audi and get humped really good, what do you say?