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Power Strokes
6.7 Tech
Extended cranking, fuel system tests.
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[QUOTE="Tiha, post: 1563407, member: 33189"] I keep thinking someone will pop in and say, hey when I hook my scanner up I show 59 psi KOEO or something like that. That 42 psi has always seemed weird to me. The low pressure switch and pressure sensor are two different things. I would think the Fuel pressure would have to affect something. As far as starting I suppose I could have a bad switch and a bad pressure sensor. LP switch stuck off. and PCM only looks at the LP switch? But on the other hand, why haven't I burnt up the CP4 by now if that were the case? This stuff sucks. When you don't do it everyday for a living the stupidest things can trip you up. Looks like most people online give up and go to the dealer. When I hook up (a different scan tool) to my 2016 it reads like 350 psi KOEO. So I need to grab one of my other scanners or didn't they change the LPFP in 2015? Don't know yet. But I will find out. [/QUOTE]
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