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Re: Downstream 02 circuit high codes P0138,P0158
Posted to Technical Discussion Forum on 3/23/2018 4 Replies

I have a 2014 fusion 1.5 turbo with p0138 p0137 codes. There is a tsb to reflash for these codes which I did with same result. I de pinned the signal wire at PCM and had 1.6 volts coming from PCM! I also have 1.28 volts on the pid for O2 bank 1 sensor 2 scan t... Login to read more.

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