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Re: GM REF HI and EST issue
Posted to Technical Discussion Forum on 10/25/2023 2 Replies

Unplugging the 4 pin connector(IIRC) to put the truck at base time would show if the glitch is happening in the distributor. I don’t see that the glitches in the waveform from the EST controller correlate with the glitches in the yellow trace. And I the glitch... Login to read more.

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