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Re: 7.3L diesel HPOP testing
Posted to HD/Fleet Forum on 5/21/2019 1 Reply

To do that test you'd have to command the ipr closed or use a block-off tool.

However, Seems to me you might be better served chasing your fuel issue. What's the IPR while the event is happening and leading up to it? What's the fuel pressure during the event... Login to read more.

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