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1990 Chevrolet Lumina, CKP Sensor Waveform
Posted to the Waveform Library on 10/5/2005

using jumper leads between CKP sensor harness connector and the ICM, found this pattern with Fluke 97A that caused a no start/no spark, as ICM could not get the coils synchronized.( CKP sensor body fractured below the o-ring allowing contact with the reluctor ...

 

car Vehicle Data

1990 Chevrolet Lumina Euro 3.1L

Engine3.1 L / 6 cyl / GAS
Trans4-speed AutomaticTransaxle
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad

car Vehicle Data

1990 Chevrolet Lumina Euro 3.1L

Engine3.1 L / 6 cyl / GAS
Trans4-speed AutomaticTransaxle
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad