Question about 1999 Pontiac Grand Prix
1999 Grand Prix - unless I keep the gas pressed after starting, it stalls. And when pressing the gas (tried driving it the other day) it seems to go sometimes but acts like it's choking and then will stall.
Whats wrong now?
I had a similar problem on my 1999 Grand Prix, 3.8l engine. I replaced the IAC Motor (Idle Air Control) that attaches into the throttle body. After disconnecting the battery, the computer goes into a learning process. It stalled once, but now seems to be running correctly. The codes set were Engine Misfire, which could be anything. I also bought a crank sensor, which is suspect, but I didn't install it.
Posted on Feb 04, 2009
I had the same problem once before makeshure the gas lines arent coroded or kenked if that dont work try cleaning the fuel injectors.
Posted on Jan 01, 2009
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Posted on Jan 02, 2017
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