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Re: P1391, cmp, ckp waveform
Posted to Technical Discussion Forum on 12/11/2015 4 Replies

Looks like the sensor is reading a larger then normal window at the first part of one of the groups. Maybe that spot on the reluctor wheel is bent. You might pull the sensor and check out the leading edge of each of the three groups of windows. You might find ... Login to read more.

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