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Help!!! Misfire

K

Kevin40th

New member
I have a 2002 grand prix GTP and it has a missfire. I dont know what it is! i changed the plugs and wires on it. it missfires at a idle then it seems to run fine untill your in the gas for alittle bit, then the service light comes on and flashes at you then will shut off by itself! idk what it is or what to do????????????
 


i dont really think it would be that cause I have had the code say misfire on 1 and another time it said misfire on 2. so yeah idk??
 
My 05' GTP giving me the same problem, occasional code for either an individual misfire or multiple cylinder misfire, i recently changed plugs to try to remedy the problem and it came back. I have heard of bad coils or the module overheating that can cause this, as well as cause the vehicle to randomly shut off when hot. This is just hear say where I live in Louisiana, maybe someone knows more about this?
 


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