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08-30-2010
Having problems with a 2000 GTP. After sitting for 3 hours started back up and instantly died. Restarted with black smoke out the exhaust and idle fluctuating from 500-1500 then dies. Could keep running by reving engine but when tried to drive engine died when let off accelerator. No check engine light. Happened at lake so I have to trailer it to shop. would like to see if anyone has any ideas.
Thanks
K
08-30-2010
well black smoke means lots of fuel is being burned, idle fluctuating and missing sounds like a vacuum leak, and the car is dumping fuel. any broken vac lines?
08-30-2010
Same thing happened to my 2000 gtp. put in new MAF sensor and it fixed the problem. good luck
08-30-2010
Thanks for the info
08-30-2010
also found this info on MAF sensor, will try this first before repalcing.
How to Clean a Mass Air Flow Sensor in a 2001 Pontiac Grand Prix | eHow.com
one site said; to see if the MAF is the problem, disconnect, if engine runs better then MAF sensor is problem.
08-30-2010
I'd think potential MAF as well. Quick easy test. Unplug it and start the car. Expect some idling issues for a few minutes. After that, if the car runs decent the problem was usually the maf.
09-07-2010
Happy Ending? replaced the MAF sensor, fairly easy just have to have the torx bit with the "safty pin hole".
Attempted to clean but in this case did not help.
Trouble shooting was disconnecting which made the engine run better.
Auto Zone $133-$136
Oreily $139-$180 lftm.
09-08-2010
I ran my car without my maf plugged in for almost a month while trying to find a cheap replacement. You just have to keep it reved up a bit at first starting so it won't die. PM KFISH he has a yard and quoted me around 50 bux last time I inquired about a MAF.
Good Luck.
09-08-2010
the PCM has another mode that will take over when the MAF is unplugged so you can safely drive the car, it just doesnt run as well as with a good one
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