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1992 Pontiac Grand Prix LE 3.1L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire
This car has what feels like a misfire. Tip in hesitation & occasional idle stall. Idle in open loop (cold) is better than closed loop (warm). BLM in closed loop goes down to [...] test on ignition shows very high firing KV on cyl. # 3-6 (20KV+) Cyl # 5-2 is v...
FIX posted 12/15/1998
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| VIN | 1G2WH54T9N |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / EFI |
| Emissions | FED |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Stall, Misfire |
| Occurs | Always, Cold, Hot, on Accel, Idle |
Trouble Codes
| 35 | iac failure |
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Vehicle Data
1992 Pontiac Grand Prix LE
| VIN | 1G2WH54T9N |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / EFI |
| Emissions | FED |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Stall, Misfire |
| Occurs | Always, Cold, Hot, on Accel, Idle |
Trouble Codes
| 35 | iac failure |
Video