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1991 Pontiac Grand Prix LE 2.3L Misfire
Posted to GM Driveability on 7/27/2000

Hello, this vehicle is being towed in tomorrow with only 2 cyl working, # 3 & 4. It has a new module, coils, coil housing, ECM. If you switch the ignition test wires # 1 & 2 fire, but then # 3 & 4 don't. My question is could a bad signal from the crank sensor ...

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car Vehicle Data

1991 Pontiac Grand Prix LE

VIN 1G2WH54D4M
Engine2.3 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / MFI
EmissionsOBDI
SymptomsMisfire
OccursAlways
Message Closed w/FIX

car Vehicle Data

1991 Pontiac Grand Prix LE

VIN 1G2WH54D4M
Engine2.3 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / MFI
EmissionsOBDI
SymptomsMisfire
OccursAlways