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1998 Chevrolet C1500 Cheyenne 4.3L Poor Idle Quality, Misfire, MIL Lamp on
thanks in advance . this vehicle has a constant instant miss fire .cyl # 5 is a constant miss fire on or off idle . # 6 is a slower miss fire count at idle & miss fire disappears off idle . fuel pressure is 60 psi,replaced spark plugs,ignition wires,distributo...
FIX posted 10/7/2009
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Message Closed w/FIX
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9 Replies Received
9 Replies Received
Related Documents & Media | VIN | 1GCEC14W0W |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0122 | Throttle Position Sensor Circuit Low Voltage |
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
| P0147 | Heated Oxygen Sensor (Bank 1 Sensor 3) Heater Circuit Malfunction |
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
1998 Chevrolet C1500 Cheyenne
| VIN | 1GCEC14W0W |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0122 | Throttle Position Sensor Circuit Low Voltage |
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
| P0147 | Heated Oxygen Sensor (Bank 1 Sensor 3) Heater Circuit Malfunction |
| P0300 | Multiple Misfire Detected |
Video