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1991 Oldsmobile Cutlass Supreme 3.1L Poor Idle Quality, Stall
Posted to GM Driveability on 12/23/2004 7 Replies

vehicle will not idle unless you create a vacum leak replaced iac and cleaned throttle by pass passage confirmed egr is not sticking on. car will run if we work the throttle and allow air into intake. o2 sensor reads rich on datastream and car is running rich....

7 Replies Received (View Replies)

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car Vehicle Data

1991 Oldsmobile Cutlass Supreme

VIN 1G3WR51T1M
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / MULTIPORT
EmissionsOBD1
SymptomsPoor Idle Quality, Stall
OccursIdle, Intermittently
Message Closed

car Vehicle Data

1991 Oldsmobile Cutlass Supreme

VIN 1G3WR51T1M
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / MULTIPORT
EmissionsOBD1
SymptomsPoor Idle Quality, Stall
OccursIdle, Intermittently