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1997 Pontiac Grand Prix SE 3.8L Misfire
Posted to GM Driveability on 2/17/2009 12 Replies

Quick question on this 3800. Got a steady misfire on #4 cylinder only. Got good fire to this cylinder(checked with oscilliscope) proper injector pulse and have swapped injectors with another [...] compression and running compression and same as other cylinders...

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car Vehicle Data

1997 Pontiac Grand Prix SE

VIN [No VIN Available]
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways
Message Closed w/FIX

car Vehicle Data

1997 Pontiac Grand Prix SE

VIN [No VIN Available]
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways