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1986 Buick Century Custom 2.5L Poor Idle Quality, Poor Fuel Economy, MIL Lamp on
Help!! I am going crazy with this one. Its my
sister-in-laws car and need to get this thing out of my
hair (whats left of it).
FIX posted 12/5/1998
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Related Documents & Media 
| VIN | 1G4AH19R5G |
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / TBI |
| Symptoms | Poor Idle Quality, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always, Under Load, Idle, Intermittently |
Trouble Codes
| 34 | Idle Air Control |
| 42 | est |
Message Closed w/FIX
Vehicle Data
1986 Buick Century Custom
| VIN | 1G4AH19R5G |
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / TBI |
| Symptoms | Poor Idle Quality, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always, Under Load, Idle, Intermittently |
Trouble Codes
| 34 | Idle Air Control |
| 42 | est |
Video