Help with Starting Problem (Vacuum?)
06-21-2002, 04:49 AM
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Help with Starting Problem (Vacuum?)
Looking for any tips on this on...
1995 Audi 90Q, 125k
Symptoms: Car was starting and driving fine yesterday. While warm, I went to start it and it idled rough, at about 500rpm. If I tried to touch the gas, it would sputter to lower rpms and nearly stall. Ultimately, it would stall on its own. Now it won't even fire when I crank it (last night or this morning). I immediately suspected a vacuum leak. I dumped the codes and got a 4431 for an intake air leak or IAC valve. I looked for an air leak and did replace one vacuum hose, but no improvement. I replaced the IAC valve about 2 years ago. The symptoms at that time were different...the car would stall randomly. Any other components or sensors that are prone to failure that would cause this code?
Thanks all...
1995 Audi 90Q, 125k
Symptoms: Car was starting and driving fine yesterday. While warm, I went to start it and it idled rough, at about 500rpm. If I tried to touch the gas, it would sputter to lower rpms and nearly stall. Ultimately, it would stall on its own. Now it won't even fire when I crank it (last night or this morning). I immediately suspected a vacuum leak. I dumped the codes and got a 4431 for an intake air leak or IAC valve. I looked for an air leak and did replace one vacuum hose, but no improvement. I replaced the IAC valve about 2 years ago. The symptoms at that time were different...the car would stall randomly. Any other components or sensors that are prone to failure that would cause this code?
Thanks all...
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