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1997 Chevrolet Express 2500 5.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on
Fist problem was miss under load,ignition parts oe and [...] tune up fixed.2000k later shows up smokin oil and missing.A/f ratio perfect,stays in open loop,o2 reading stays at 460 even when I try to change [...] press. reg. at first because this thing is dumpi...
FIX posted 1/21/2005
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Related Documents & Media | VIN | 1GCFG25M5T |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / CDI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always |
| Misc. | Light Duty |
Trouble Codes
| P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
1997 Chevrolet Express 2500
| VIN | 1GCFG25M5T |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / CDI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always |
| Misc. | Light Duty |
Trouble Codes
| P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
| P0300 | Multiple Misfire Detected |
Video