Oregon Chapter President
Join Date: Nov 2007
Location: Hubbard, OR
Thanked 137 Times in 121 Posts
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Sputter, miss, cut out!!!!
My friend has a 2001 CTD. I'm trying to help him figure out something on his truck. His truck is cutting out, and sputtering at various rpms, whether under load, or at idle sporadically and intermittent. Like how a gas engine will misfire. Has once died at a red light. There seems to be no loss of power at the wheels, and it starts up just fine every time. About three weeks ago he got the p0216 death code for the vp44, so about two weeks ago we swapped in a newly rebuilt one, and added a FASS 150series/95gph water/air separator which replaced the stock lift pump. After all the install was complete, we cleared the code and took it for a test drive. No codes came back, fuel pressure at idle was 16psi and around 12psi WOT I think, and it seemed to run great. A week goes by, and he gets the code P0370 Fuel Injection Pump Speed/Position Sensor Signal Lost. Did some research and seems like that code is only associated with pump failure, but how it's brand new?! So, we decided to clear the code and see if it came back. That was early this week, and it has not come back, but the problem still continues. He says he's not sure if it's just coincidence, but on sunny warm days it does it the most. Do you have any ideas?
I was at first thinking a pin on the pump, or something with the wire harness, but all checks seem to show nothing wrong. Thought maybe he was sucking air from somewhere in the fuel line(s), but can't seem to find one. Reset the APPS already. Think it could be a MAP sensor, ECT Sensor, IAT sensor, or camshaft sensor.
Also, I was doing some reading and found out that Fords have had an issue with sensors that still operate within a set voltage range for the ECM, but overall are failing to sensor. Has anyone every heard of this happening with trucks like ours? Could this explain why there is no DTC present?
Thanks for your help and advice!
THE S.O.L.I.D CREW and temporarily truckless.
Sold: 1990 Reg Cab, AT, 4x4, 197k, Chassis Unlimited Crossover kit, D400CS springs front, DIY4X shackle flip rear, Nitro shocks, home ground pin, and a ton of body work.