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Re: Why would a failed o2 sensor cause no start on 99 Ranger ???
Posted to Technical Discussion Forum on 10/13/2001 7 Replies

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I would expect the PCM to set a fault code for the effected HTR circuit and not command it on , regardless in 16 years as a Ford tech, I have not seen a biased/lazy o2 sensor on a Ford cause a no- sta... Login to read more.

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