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[QUOTE="sideactiondiesel, post: 1490084, member: 5070"] FRP sensor.. FPR on pump... FCV on pump... HIGH back leak on injector... low or poor lift pump pressure... I feel it needs a pump as it sounds like the pressure reg went bad. But try FRP sensor first . let truck get up to running temp then test . if truck fails after warm then I would say pump reg. Good luck. GET IT TO SOMEONE QUALIFIED TO DO SUCH A DIAGNOSIS. sorry Things like these kinds of problems are not a simple yes or no you have to understand data across the data stream to diagnose a problem like this... [/QUOTE]
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