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Re: 7.3L diesel HPOP testing
Posted to HD/Fleet Forum on 5/22/2019 12 Replies

It sounds like you have a bad circuit from the IPR to the PCM or the IPR driver in the PCM has failed.

If the fuel pressure is not bleeding off in the filter, check for a stuck or plugged fuel pressure regulator. Make sure there is no aftermarket fuel pump o... Login to read more.

12 Replies Received (View Replies)