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Re: Base timing shifting when hot
Posted to Technical Discussion Forum on 4/15/2017 1 Reply

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[1990 Chevrolet Blazer Silverado, ECM/Inputs/Outputs Waveform]

CH B EST, ignition timing is advanced 21.2 deg

Ch C DREF

CH D coil wire showing 1 plug wire with high kv and a high spark time kv ... Login to read more.

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