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1993 Buick Skylark 3.3L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, unstable rpm, warm
Hello group: We just finished a top overhaul to this engine due to an over heat problem and cause a crack cylinder head! But now the engine runs badly during the idle and when engine is hot. It seems like there is a vacuum leak somewhere but we can'...
FIX posted 6/9/1999
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Message Closed w/FIX
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| VIN | 1G4NV54NPC |
| Engine | 3.3 L / 6 cyl |
| Emissions | FEDERAL |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, Unstable RPM, Warm |
| Occurs | Hot, Idle |
Trouble Codes
| 44 | oxygen sensor lean |
Message Closed w/FIX
Vehicle Data
1993 Buick Skylark
| VIN | 1G4NV54NPC |
| Engine | 3.3 L / 6 cyl |
| Emissions | FEDERAL |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, Unstable RPM, Warm |
| Occurs | Hot, Idle |
Trouble Codes
| 44 | oxygen sensor lean |
Video