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1999 Chevrolet Express 2500, CKP Sensor Waveform
Posted to the Waveform Library on 2/21/2007

Ch1 (yel) is CKP Ch2 (green)IC Ch3 (blue)CMP Ch4 (red) ignition amperage

The RPM is varying in this capture due to the timing changes commanded by the PCM in error.

 

car Vehicle Data

1999 Chevrolet Express 2500 5.7L

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

car Vehicle Data

1999 Chevrolet Express 2500 5.7L

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