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2008 Pontiac Grand Prix 3.8L Reduced engine power
Posted to GM Driveability on 9/8/2011 14 Replies

Please review repair history before replying. We have done every wiring repair per every TSB's and Identifix we could find.

Problem- Vehicle intermittantly, and randomly goes into "reduced engine power" mode. Check engine light goes on with Throttle body code...

14 Replies Received (View Replies)

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car Vehicle Data

2008 Pontiac Grand Prix

VIN 2G2WP55288
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsReduced Engine Power
OccursIntermittently
Message Closed

car Vehicle Data

2008 Pontiac Grand Prix

VIN 2G2WP55288
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsReduced Engine Power
OccursIntermittently