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1991 Pontiac Grand Am LE 2.3L Excessive Emissions, Poor Idle Quality
engine runs rich, computer goes into closed loop and compensates causing a lean misfire. ect, fuel pressure (39+ psi), vacuum, compression (165+ psi) all normal, filters are clean. cylinder #1 plug consistently black. swapped #1 and #2 injectors and #1 plug st...
FIX posted 11/7/2006
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Message Closed w/FIX
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6 Replies Received
6 Replies Received
Related Documents & Media | VIN | 1G2NE54D9M |
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / MULTI-PORT |
| Emissions | OB1 |
| Symptoms | Excessive Emissions, Poor Idle Quality |
| Occurs | Always, Hot, Idle |
Message Closed w/FIX
Vehicle Data
1991 Pontiac Grand Am LE
| VIN | 1G2NE54D9M |
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / MULTI-PORT |
| Emissions | OB1 |
| Symptoms | Excessive Emissions, Poor Idle Quality |
| Occurs | Always, Hot, Idle |
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