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1999 Pontiac Grand Prix SE 3.8L MIL Lamp on
Posted to GM Driveability on 7/3/2004 20 Replies

This car has a P0300 code. No problems are felt from the seat or looking at the motor. The ignition module has been replaced. With the Tech 2 and using the Misfire graphic cyl 3 & 6 are causing the problem. I did a power balance and all 6 dropped roughly the s...

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  Related Documents & Media  1999 Pontiac Grand Prix SE

 
Message Closed w/Summary

car Vehicle Data

1999 Pontiac Grand Prix SE

VIN 1G2WJ52K4X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/Summary

car Vehicle Data

1999 Pontiac Grand Prix SE

VIN 1G2WJ52K4X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected