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1991 Oldsmobile Cutlass Supreme 3.1L Poor Idle Quality
Posted to GM Driveability on 12/5/1997

Hello Everyone

I have a 91 cutlass that has a rich condition at idle at times. The car runs poorly and exhaust smell rich. Replaced O2 sensor and problem still exists. When the car goes rich and you accelerate the problem disappears and idles fine. No problem...

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car Vehicle Data

1991 Oldsmobile Cutlass Supreme

VIN 1G3WH54T3M
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality
OccursIntermittently
Message Closed

car Vehicle Data

1991 Oldsmobile Cutlass Supreme

VIN 1G3WH54T3M
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality
OccursIntermittently