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Re: finding source of electrical noise on PCM sensor lines
Posted to Technical Discussion Forum on 2/20/2014 4 Replies

Snip the wire out of the PCM to the O2 sensor and check for the noise being on the harness side or actually coming out of the PCM.. i bet the PCM is backfeeding into the other circuits caused by inductive kick of injectors..

you say the current ramps look ok... Login to read more.

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