Question about 2001 Pontiac Grand Prix
My 2001 Grand Prix GT with 155K miles stalls repeatedly within 10-15 miles of each drive. It cuts out immediately...not a sputter. It consistently throws a P0101 MAF code and I must reset from my scanner to restart and be on my way. I have replaced the MAF sensor and checked the connector at the sensor for a loose or intermittent connection. I have replaced the PCM with a reman and flashed with the latest firmware. I've had it in a garage to take advantage of their diagnostic equipment and they suggested the new PCM, but have been doing all the work myself. At this point, I'm at a loss, but I keep reading about the crankshaft sensor being a potential for causing immediate stalls?? The P0101 code baffles me though. Any help would be appreciated. The car runs great otherwise. Thank you.
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Posted on Jan 02, 2017
The filter is after the sensor. If the filter is dirty, it should be replaced anyways. If the sensor is covered in dirt, than yes clean it first.
Lastly replace MAF
Posted on May 09, 2009
YOUR GAS SMELL MIGHT BE THE FUEL PRESSURE REGULATOR LEAKING UP THRU THE CENTER OF THE UNIT JUST LIKE AN OIL PRESSURE SENDER WOULD. IT IS LOCATED IN THE FUEL RAIL
Posted on May 20, 2009
look around engine for any breather pipes ,they could be split and make sure you have a look and dont think i have already done it
Posted on Jun 03, 2010
Id say maf again, due to the previous instance, however on a 3.8 i wouldnt be above checking the fuel pressure regulator for seeping through the vacuum hole. The boss has a 00 impala with a 3800 and my wife does both with 230k roughly on each, seen quite a few of those regulators and maf's over that time.
Posted on Jul 27, 2010
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