2003 workhorse P32 fuel pressure
I installed a max tow fuel pressure gauge and see I'm only getting 46 psi. Can anyone confirm that all 8.1 vortecs should be 58-61 psi? I've already changed the fuel filter and that made no differe...
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I believe there is a regulator on the rear of the left side fuel rail. Are you having problems? I would think 46 lbs would still be enough for normal operation.
