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1991 Oldsmobile Cutlass Supreme 3.4L Excessive Emissions, Poor Idle Quality, Stall, Misfire
Engine runs rough at idle. Runs good through normal accelaration and cruise. Misses when toquer converter lock up is engauged and under load. The spark plugs on rear bank are real black (rich) while the front bank look normal to lean. We replaced rear bank spa...
FIX posted 7/20/1998
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| VIN | 1G3WH14XZM |
| Engine | 3.4 L / 6 cyl |
| Emissions | US FED |
| Symptoms | Excessive Emissions, Poor Idle Quality, Stall, Misfire |
| Occurs | Under Load, Idle |
Message Closed w/FIX
Vehicle Data
1991 Oldsmobile Cutlass Supreme
| VIN | 1G3WH14XZM |
| Engine | 3.4 L / 6 cyl |
| Emissions | US FED |
| Symptoms | Excessive Emissions, Poor Idle Quality, Stall, Misfire |
| Occurs | Under Load, Idle |
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