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1999 Chevrolet Express 1500 5.7L Misfire, Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 6/4/2013 11 Replies

I had a customer come in with his Van for the MIL light being on. We check the codes and came up with p0135,p0154,p0155,p0161,p0303,p0327 and p1153. The van drives well no misfire but uses a little more fuel then its supposed to. Fuel pressure is where it's su...

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  Related Documents & Media  1999 Chevrolet Express 1500

 
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car Vehicle Data

1999 Chevrolet Express 1500

VIN 1GBFG15R6X
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / *
EmissionsOBD-II Compliant
SymptomsMisfire, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0135Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction
P0154Air Fuel Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
P0155Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
P0161Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction
P0303Cylinder 3 Misfire Detected
P0327Knock Sensor Front Circuit Low Voltage
Message Closed

car Vehicle Data

1999 Chevrolet Express 1500

VIN 1GBFG15R6X
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / *
EmissionsOBD-II Compliant
SymptomsMisfire, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0135Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction
P0154Air Fuel Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
P0155Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
P0161Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction
P0303Cylinder 3 Misfire Detected
P0327Knock Sensor Front Circuit Low Voltage