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1989 Pontiac Firebird Trans Am 5.7L Poor Idle Quality, Stall, Misfire
O2 is pegged lean, block learn at 160. VANTAGE says MAF can be .4v at idle, DOES ANYBODY DISAGREE? I can substitute MAF signal voltage at .7 and it runs fine, O2 switches and everything. Do you think I am compensating for another cause for the lean ...
FIX posted 9/1/1999
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| VIN | 1G2FW2185K |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / MPFI |
| Emissions | FED |
| Symptoms | Poor Idle Quality, Stall, Misfire |
| Occurs | Always |
| Misc. | Multiport |
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Vehicle Data
1989 Pontiac Firebird Trans Am
| VIN | 1G2FW2185K |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / MPFI |
| Emissions | FED |
| Symptoms | Poor Idle Quality, Stall, Misfire |
| Occurs | Always |
| Misc. | Multiport |
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