Grand Prix

Stalling Due to Mass Air Flow or Crankshaft Position Sensor Failure on Pontiac Grand Prix

Problem Description and Possible Solution

The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.

Problem Data
RepairPal Verified
Average mileage: 134,126 (18,700–246,000)
Engines affected: 3.1L V6, 3.8L V6, 3.8L V6 Supercharged, 5.3L V8
12 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
64 people reported this problem
Viewing 1 - 18 of 18 comments
my grand prix has been stalling for weeks now cant seem to find the problem. the mass air flow code keeps popping up and we've changed everything it could be. the code still puts up, this is driving me and my dad crazy we cant figure out anything. were thinking it the computer thats bad but were not sure help plz?
Car would stall check engine light car would run for a month or longer without stalling.Would stall at any speed.Mass air flow sensor was the culprit.I tapped lightly on the sensor and the engine stalled!!Try running the car with the sensor unplugged.
ok when i drive my car a good distance and stop at a stop sign or a light my car starts alie up high and then alie down low then go back up high and run high for a while then cuts off but once i puts it back in park it crank right back up with no problem
I had more than just stalling! Once my GTP reached normal operating temp. it would stall at first then completely cut off! not good in rush hour traffic! Once it cooled down, it would start until it warmed back up. I let it sit a few months while I researched the problem. Did a major tune up, changed all fluids, plugs, etc... The problem remained. I was ready to change the CPS, not looking forward to it! Then decided to change the MAF. BINGO! It worked!
Stalls or just wont start.. if it does start i can go anywhere from a block to a mile then it stalls out again
Stalls after the engine hit normal operating temperature while driving. Replaced the MAF problem no longer exists.
repeated stalling and check engine light. Diagnostic test coded Mass Air Flow Sensor. Once replaced no more problems
engine occasionally surging... and occasionally stalling
CEL reporting high O2 sensor.... replaced ... bad diagnosis
True problem was MAF which of course could send rich signals to O2.
My check engine light came on, and it was due to a MAF sensor. I was getting a new oil change, and the tech told me I should get an engine flush to clean the sensors. It did not work and I was pissed for spending a hundred dollars.
2001 Grand Prix GT. car stalls after driving about 5 miles. will restart after 10 mins. solution on my car was cleaning throttle body and mass air flow sensor with mass air cleaner and replaced idle air control valve. also replaced a bad coil. no stalling issue now