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1999 Pontiac Grand Prix GTP 3.8L Misfire, MIL Lamp on
Posted to GM Driveability on 1/14/2004 9 Replies

Vehicle came in for engine maintenance/spark plugs. Technician found spark plug wires also bad, spark plugs worn out. Replaced spark plugs & plug wires. Technician also cleaned throttle body with air intake cleaner. Car was road tested, technician returned wit...

9 Replies Received (View Replies)

  Related Documents & Media  1999 Pontiac Grand Prix GTP

 
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Grand Prix GTP

VIN 1G2WR1216X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Grand Prix GTP

VIN 1G2WR1216X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected