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2006 Pontiac G6 Base 4dr Sedan w/1SV

2006 Pontiac G6
Trim Info:
Front Wheel Drive, 4 Door Sedan, Compact
23 mpg city / 34 mpg hwy
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June 23, 2013, 11:53 am

Ryan W

Question: Replaced PCM, engine dies after I drive down the street

I replaced the PCM in my 2008 Pontiac G6 2.4 liter and the engine cuts off after I drive it down the street. Could this be some sort of sensor or the PCM trying to relearn it's normal operating procedure. I need help!

June 24, 2013, 1:58 pm

Ron W
Expert Mechanic

sonds like the PassKey Antitheft system is locking out the fuel circuit. It may be the antitheft system no longer recognizes your key as a good key for the ignition. When this happens, the car will start and run for a few seconds then die. Usually it won't start at all after that until a few hours later when the system resets.

You should check with who replaced the PCM, they may need to reprogram your keys to your antitheft system.

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