Engine tries the stall after warm [Archive] - GrandAmGT.com Forum

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Violator
11-28-2004, 04:54 PM
For some reason Im having this problem, when the car gets to operating temp. the car doesnt hold idle so well, its like it trys to stall and catchs it self. and I noticed that my car idles at about 750-900rpm my book reads. when it gets hot the idle goes up way down the back up the way down. I have no codes showing, I was thinking one of three things (MAF, O2, TPS) but again Im not getting any codes.

93 Grand Am GT
3300v6

93 Buick Skylark Custom
GMHP (3300v6)