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1998 GMC K1500 Sierra SL, ECM/Inputs/Outputs Waveform
Posted to the Waveform Library on 2/1/2014

orange = number 1 inj volts, green=est,purple =ckp and red=coil current from start of wave. The number 1 inj draws 6 amps then after that there are no injectors being opened for some time after

 

car Vehicle Data

1998 GMC K1500 Sierra SL 5.0L

Engine5.0 L / 8 cyl / GAS
Trans5-speed StandardTransmission
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad

car Vehicle Data

1998 GMC K1500 Sierra SL 5.0L

Engine5.0 L / 8 cyl / GAS
Trans5-speed StandardTransmission
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad