Question about 2002 Pontiac Grand Am
Idle fluctuates at at cold start in park. code p0102, mass air flow circuit low. it fluctuates a little in drive.
Sounds like a vacuum leak. Do you hear a sucking sound? Check your vacuum hoses, around the throttle body and intake for the sound. p0102 can come on when there is unmetered air getting to the engine and it could be fluctuating because the idle air control valve is trying to compensate.
Posted on Sep 27, 2009
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Posted on Jan 02, 2017
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