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1989 Pontiac GRAND AM 2.3L Hesitation, Surge, Poor Fuel Economy
the problem is the system is running lean all the time. When idiling with scanner on,O2 mv stay at around 877 ( system goes into CLSD loop ) Integrator is at 28. Then o2 mv start to drop to approx 378. Then integrator jumps up to 128,then the car runs fine...
FIX posted 12/2/1999
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Message Closed
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| VIN | 1G3NF11A6L |
| Engine | 2.3 L / 4 cyl |
| Emissions | OBD1 |
| Symptoms | Hesitation, Surge, Poor Fuel Economy |
| Occurs | Under Load, Idle |
| Misc. | 2Dr |
Message Closed
Vehicle Data
1989 Pontiac GRAND AM
| VIN | 1G3NF11A6L |
| Engine | 2.3 L / 4 cyl |
| Emissions | OBD1 |
| Symptoms | Hesitation, Surge, Poor Fuel Economy |
| Occurs | Under Load, Idle |
| Misc. | 2Dr |