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1989 Chevrolet K1500 Cheyenne, Injector Waveform
Posted to the Waveform Library on 8/7/2001

Dual trace of D/REF and injector amp draw. The vehicle was running extremely poorly at the time. You can see D/REF and injector control dropping out at times.

 

car Vehicle Data

1989 Chevrolet K1500 Cheyenne 5.7L

Engine5.7 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad

References

TECHTIP: '89 Chevy K1500-int. runs very poor and stalls

car Vehicle Data

1989 Chevrolet K1500 Cheyenne 5.7L

Engine5.7 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad

References

TECHTIP: '89 Chevy K1500-int. runs very poor and stalls