
1996 Chevrolet K1500 5.7L Misfire
Good afternoon, I have what may be a stupid question but how do you go about verifing a bad injector assy on this Vortec? I have never had to replace one so I want to be sure it is bad. The truck has high misfire counts on cyl 3 and 5. Has some on cyl 6 but ju...
FIX posted 7/31/2009
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VIN | 1GCEK14R8T |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / CSFI |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Under Load, on Accel, Idle |
Trouble Codes
P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage |
P0300 | Multiple Misfire Detected |
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
1996 Chevrolet K1500
VIN | 1GCEK14R8T |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / CSFI |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Under Load, on Accel, Idle |
Trouble Codes
P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage |
P0300 | Multiple Misfire Detected |
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |