2250 low rail pressure code

[Squish099]

(07-06-2017 )loghauler Wrote:  One of my drivers was headed to work empty this morning. Called and said the service engine light would come on for 5-10 seconds, derate engine, and then go off and return to normal. It happened 5 times in a 50 mile span. Got him to stop at friends shop, plugged up and the last stored code was fuel rail pressure. Replaced fuel filter on frame (truck is a kw with paccar filter housing). Code didn't pop up again until last load this afternoon, and it only popped up while loaded and truck was in a decent pull. It happened 7 times this time, and again lasted 5-10 seconds and went back off. He's empty now and it hasn't done it anymore. Fuel pressure is 158 on each side of filter base. Any ideas? Truck was serviced this passed weekend with all new filters. TIA

2250 with fuel pressure codes could be a hand grenade.. The pumps are notorious for exploding the ceramic plungers and taking out the entire motor.. First question which fuel pump is on it, the 3 cylinder (8,hex head bolts), or 2 cylinder (4, Allen head bolt). Seeing as either can have ceramic plungers buy and new fuel pump head gasket and check the plungers. If it's a 3 cylinder pump the probability is high it has ceramic. Cummins solution is to sell you the 2 cylinder pump with steel plungers to the tune of 4000 +/- with related hard lines for the swap. The 3 cylinder ceramic plungers have a life expectancy for 4-500k miles, some never made it to 300k..