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1995 Chevrolet G30 Chevy G30, Ignition waveform
Posted to the Waveform Library on 6/15/2009

Secondary ignition at idle, after rebuilt distributor installed. Engine had a bad up-and-down surge at all speeds (idle and driving). There were no codes set in ECM. Also would intermittently crank tight and pop back thru intake during cranking.

 

car Vehicle Data

1995 Chevrolet G30 Chevy Van 7.4L

VIN 1GBLP37NS3
Engine7.4 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemIgnition
Component
ConditionKnown Good

car Vehicle Data

1995 Chevrolet G30 Chevy Van 7.4L

VIN 1GBLP37NS3
Engine7.4 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemIgnition
Component
ConditionKnown Good