01 Cummins 24v fuel pressure question

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Mar 25, 2014 | 02:50 AM

dman01cummins

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Diesel Fan

Joined: Nov 2013

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01 Cummins 24v fuel pressure question

Hey guys just wondering what low fuel pressure is and what good high fuel pressure is and at what pressure do I need to start backing off. Truck is mostly all stock lift pump gauges and edge comp are on there way.

Mar 25, 2014 | 10:00 AM

gump

Diesel Fan

Joined: Jan 2010

Posts: 76

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From: Butte, MT

With an aftermarket LP it's 15 idle/cruise, 10 under WOT, any lower than 6 and bad things happen to your VP. This is my limited knowledge from having two VP44 trucks.

Mar 25, 2014 | 10:23 PM

lilmike1540

Diesel Enthusiast

Joined: Feb 2014

Posts: 195

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From: manzanola co

Get on ebay and order a low fuel pressure warning light 50$ it will go off ..or light up when pressure hits 5psi and anything over 18 psi is a little much on stock trucks as it will cause hard starting issues