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Re: Base timing shifting when hot
Posted to Technical Discussion Forum on 4/16/2017 9 Replies

[1990 Chevrolet Camaro Iroc-Z, ECM/Inputs/Outputs Waveform]

CH A Scope lead is connected to one of the pick up coil leads, cranking

CH B Distributor reference, DREF

CH C Electronic Spark Timing EST voltage is low cranking

CH D LO REF

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car Vehicle Data

1990 Chevrolet Camaro Iroc-Z 5.0L

Engine5.0 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

1990 Chevrolet Camaro Iroc-Z 5.0L

Engine5.0 L
Trans4-speed Automatic (Electronic)