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Re: DIESEL PRV VALVE BEHAVIOUR.?
Posted to HD/Fleet Forum on 2/27/2019

Yup. I think the problem here is misunderstanding and different terms. I almost think he is talking about maybe injector return or something.

Again on the Duramax FPR 1 is in the HP pump and FPR 2 is in the front of the left hand fuel rail, and the fuel rail... Login to read more.