Question about 1999 Pontiac Grand Prix
My 99 Grand Prix GT was running fine and then when I turned it off and tried to start it when leaving somewhere, it wouldn't work. It was like it would ONLY run when cold. If it warmed up, it would stall out. We have changed the Cat. Converter and it is still running poorly. If I unplug the MAF sensor, it runs fine but tries to stall. BUT if it is plugged in, it won't even idle. I don't know if it is truly the MAF sensor or if it is just something else causing this problem.
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Posted on Jan 02, 2017
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