Engine Control Module (ECM) can fail on Pontiac Grand Prix

The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

RepairPal Verified
Average mileage: 130,181 (60,000–195,000)
8 model years affected: 1991, 1992, 1993, 1994, more2002, 2003, 2006, 2007
13 people reported this problem
4 people shared problem details
Engine stalls and shuts off going down the road. Have to stop and put it in park and it will crank. Also does this problem when vehicle is idling
Engine stops unexpectedly when driving. Mostly it is at low speeds, but it has happened on the highway a few times as well. Sometimes the engine has enough RPM that it re-fires on its own, but sometimes I need to shift to neutral and manually restart it. It did stall one time in the middle of an intersection! that could have been really bad! I do not feel safe driving this car and am going to park it until I can sell it or trade it off.
Sometimes car won't start and sometimes it will
After 1000.00 dollars charged by a mechanic? Finally a real mechanic replaced the ecm
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