Compression Ignition Addict
Join Date: May 2010
Location: LaFontaine, IN
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P2291 Won't start.... HPFP?
NEW UPDATE: Well its down again with same issue!!!! Was cruising down highway and I felt it kinda give out then go again and I watched the fuel pressure go from in the 10's to ZERO! So I coasted to the next turnoff, let it sit for 10 mins. Started back up made it another half mile then she was done again... I heard the AirDog over amping and some cavitation so after about everything being replaced in the fuel system I can only reasonably think that it has to be an issue in the tank. Once the fuel settles for a few minutes its starts back up only to die again... I've got oven 5 grand put into this since it first started acting up... I'm thinking the only thing I can do now it drop the tank, check the sending unit, check tank for debri, and install the single tube sump system in there...
UPDATE: As of today they still havent figured out the exact issue with the truck. They believe its the FASS system returning the fuel to the filler neck instead of sending it to the engine. They said they got the truck to start if the pinch the return line... Throwing the stock system back on to check... Been almost a month since I've had my truck.......
So I've been fighting with my truck for a little while now. About to throw in the towel...
Bought the truck a little over a month ago. Has 40K miles on her.
All the normal bolt on mods, down pipe, exhaust, intake, egr delete, fass system, mini maxx...
I'm getting a P2291 code, its the only code I'm getting. I can get it to start just to have it die a few seconds later. I have changed both filters on the fass pump, and the fuel filter on the engine. Tank has plenty of fuel. Get only a small amt of air out of the strator valve but never get any fuel...
I've heard from a few people it could possible be the fass pump... Or more than likely the HPFP. Anyone else have any input or ideas on things I could try before having to send it in for a hpfp replacement? Any help/input would be greatly appreciated. Thank you!!!
2008 Ford F-350 CC/LB 4X4
Last edited by Hoosierdiesel; 12-27-2013 at 08:31 AM.