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1991 Chevrolet R3500 Cheyenne, Vacuum/Pressure/Flow Waveform
Posted to the Waveform Library on 5/31/2004

Channel A is 1mv/amp, starter B+ feed. Channel B is primary ignition. Trigger is cylinder #1 secondary ignition. Engine is cranking with throttle wide open and fuel delivery disabled.

 

car Vehicle Data

1991 Chevrolet R3500 Cheyenne 5.7L

Engine5.7 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemEngine/Propulsion
Component
ConditionKnown Good

car Vehicle Data

1991 Chevrolet R3500 Cheyenne 5.7L

Engine5.7 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemEngine/Propulsion
Component
ConditionKnown Good