
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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Message Closed w/FIX
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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 |