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1997 Chevrolet K1500 Cheyenne 5.7L Misfire
Posted to GM Driveability on 1/28/2009 13 Replies

i have a problem child here, this truck has a missfire on cylinders 2 & 6 constantly, seems to be fireing out exhaust at least partially. heres where we started, scan for codes found codes as noted also noted no sync pid on scanner and mass flow flatlined, did...

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Message Closed w/Summary

car Vehicle Data

1997 Chevrolet K1500 Cheyenne

VIN 1GCEK19R1V
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SCFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways
Misc.Scfi

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P0102Mass Airflow Sensor Circuit Low Voltage
P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0300Multiple Misfire Detected
P0340Camshaft Position Sensor 'A' (TDC) Circuit Intermittent
P1345Mass Airflow Sensor Loose Contact With Low Frequency
Message Closed w/Summary

car Vehicle Data

1997 Chevrolet K1500 Cheyenne

VIN 1GCEK19R1V
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SCFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways
Misc.Scfi

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P0102Mass Airflow Sensor Circuit Low Voltage
P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0300Multiple Misfire Detected
P0340Camshaft Position Sensor 'A' (TDC) Circuit Intermittent
P1345Mass Airflow Sensor Loose Contact With Low Frequency