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1980 Oldsmobile Cutlass Supreme 3.8L Excessive Emissions, Poor Idle Quality, Misfire
Ignition timing is advancing excessively at idle, 55 deg btdc or higher. This is causing a rough idle and excessive HC emissions. I have tried everything that I can think of with no results. The factory manual does not cover computed timing problems. Has anyon...
FIX posted 9/27/1998
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Related Documents & Media 
| VIN | 3M69AAR496 |
| Engine | 3.8 L / 6 cyl |
| Emissions | Cal Emissions |
| Symptoms | Excessive Emissions, Poor Idle Quality, Misfire |
| Occurs | Idle |
Message Closed w/FIX
Vehicle Data
1980 Oldsmobile Cutlass Supreme
| VIN | 3M69AAR496 |
| Engine | 3.8 L / 6 cyl |
| Emissions | Cal Emissions |
| Symptoms | Excessive Emissions, Poor Idle Quality, Misfire |
| Occurs | Idle |
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