06-30-2006, 10:32 PM
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#1 (permalink)
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Non Member
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Join Date: Mar 2005
Location: Hadley, Mi.
Posts: 710
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p0251 code half way through a cross country trip
Okay guys, halfway to Montana from Michigan I noticed that my rail pressure at 70mph was a little low, milage was down and truck would lose rail pressure when throttled. I limped it to Missoula and put a 14mm bolt in the rail relief valve no change. Checked codes and I have p0251 injection pump fuel metering contol a.
The cp3 is brand new and I have been running a Van aaken 3.1 for about a week (in addition to TST at 1/1). The highest rail pressure I have seen with the VA was about 27,000.
Any ideas, I ran the truck in this condition for about 1000 mi so I doubt I have a cracked injector tip, boy do problems suck when your 1800 mi from home.
Thanks for any and all help.
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04.5 sle 3/4ton 4x4, DTT, SPS 66, SPA guages (egt/boost and low side fp/rail pressure), flux 1 sticks, TST, VA c.3.1, Walbro 392/w 2mic filter from GDP, Smarty, and assorted other stuff.
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