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.

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Average mileage: 115,779 (60,000–144,350)
7 model years affected: 1991, 1992, 1993, 1994, more2003, 2006, 2007
11 people reported this problem
3 people shared problem details
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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