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1994 Pontiac Grand Am SE 3.1L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy
Long term fuel trim bounces around from 128 to 60 when this occurs the injector pulse width drops to 2.4 to 2.6 the engine is at operating temp at this time
FIX posted 10/15/2002
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Message Closed w/FIX
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2 Replies Received
2 Replies Received
Related Documents & Media | VIN | 1G2NE15MER |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / mpfi |
| Emissions | obd1 |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Idle, Intermittently |
Trouble Codes
| 28 | Shifter postion switch |
Message Closed w/FIX
Vehicle Data
1994 Pontiac Grand Am SE
| VIN | 1G2NE15MER |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / mpfi |
| Emissions | obd1 |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Idle, Intermittently |
Trouble Codes
| 28 | Shifter postion switch |
Video