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1987 Buick LeSabre 3.8L Excessive Emissions, Poor Idle Quality, Stall
Fuel pressure/quality/volume nominal. Ign scopes well. Idle not as smooth as would expect. Runs decent initial start-up and open loop. However-- Once in closed loop, just off idle ([...]), engine runs intermittently ratty/smooth. Puffs black smoke, and ...
FIX posted 11/28/1999
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Message Closed w/FIX
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Related Documents & Media 
| VIN | 1G4XXXX3XH |
| Engine | 3.8 L / 6 cyl |
| Emissions | FED |
| Symptoms | Excessive Emissions, Poor Idle Quality, Stall |
| Occurs | Closed Loop Only |
Trouble Codes
| 42 | esc problem--does not reset |
Message Closed w/FIX
Vehicle Data
1987 Buick LeSabre
| VIN | 1G4XXXX3XH |
| Engine | 3.8 L / 6 cyl |
| Emissions | FED |
| Symptoms | Excessive Emissions, Poor Idle Quality, Stall |
| Occurs | Closed Loop Only |
Trouble Codes
| 42 | esc problem--does not reset |
Video