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1994 Buick Regal Custom 3.8L Misfire
Posted to GM Driveability on 4/24/2002 14 Replies

Checked all above. Considering high mileage, all pretty good. Also checked regulator, dry. If I short out cylinders # 1 & 2 ( number on coil, not firing order ) no rpm change. Replaced plugs and wires and coils on these cylinders despite good test results. Sti...

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car Vehicle Data

1994 Buick Regal Custom

VIN 2G4WB15L0R
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / pfi
Emissionsobd1
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

1994 Buick Regal Custom

VIN 2G4WB15L0R
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / pfi
Emissionsobd1
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected