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Power Strokes
6.4 Aftermarket
low rail pressure
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[QUOTE="madman1234509, post: 840215, member: 3910"] My minimax monitors rail pressure... Or at least Im pretty sure its actual rail pressure, and not like desired rail pressure or something. Also, how can we say its not the lpfp going. My buddies job1 had the same symptoms and his stock lpfp ended up going out. Downside is there is no code that i know of to tell if that pump is bad, and we dont have a low pressure system gauge on our available tuning devices. You can measure the ohms or whatever to diagnose a bad pump but Im not sure on specifics. Id look into that as wel because if you hpfp isnt supplied with enough fuel youll get low rail pressure. [/QUOTE]
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