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Re: Phantom rough idle/P0284/P0269
Posted to HD/Fleet Forum on 11/1/2012 2 Replies

I missed that your fuel pressure was 30 psi. Check it at the filter housing. If it's low there, check the filter, pump and pressure regulator, and check for a restriction in the tank. Tee a vacuum gauge in at the pump inet, it should be less than 6 in/hg.

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