On my 2000 Grand Prix 3.8L the symptoms were "when warmed up a little the engine would idle up and down and then stall out, I could not restart the engine until cold" I unplugged the MAF sensor and car would run without stalling. Try this method to test yours.
where is the location posslook sensor three wires , 2000 pontiac sunfire
I need to know how to remove a rear wheel speed sensor on a 2002 Pontiac Sunfire
it is on the engine
No such animal . . . Vibe was released in 2003
On the back side of the engine underneath to the left of the knock sensor which is to the left of the camshaft position sensor
The throttle position sensor can be removed by dismantling the chassis in which it sits. This can be done by referencing the owner's manual f the Pontiac Montana.
Losen the exhaust cross over and take off temp sensor
replace the cam sensor
These fans work off of heat sensors. Your sensor can be failing, replace this sensor. This still does not tell where the sensor is located.
If a 2000 Pontiac Grand Am shuts off while in drive, there could be a problem with the passlock sensor. There could also be an issue with the fuel pump.
just above the oil filter
The oil pressure is low or the sensor has failed.