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Re: The P1391 Intermittent Loss of CKP/CMP
Posted to Technical Theory Forum on 12/3/2018 3 Replies

[2000 Jeep Cherokee SE, ECM/Inputs/Outputs Waveform]

The attached is a rendition showing what I THINK (educated guess but a GUESS - I did not write the ECM program :-) ) of a crank that would not be a problem re: P1391 evaluation

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