What does this part do?

[Briggskid987]

Sorry if this is a stupid question but my service advisor did not give me a good understanding of what this part does.

Part # is 8c3z-9275-Q "Sender"

The dealer left me the truck out to pick-up after they closed this evening but when I spoke to my advisor, he wasn't sure what the part controls.

After looking at my paperwork, the only thing I see is that they got a code P2291.

The truck is a 2010 and has 12,000 miles all stock except for a dpf back exhaust. Truck has been running fine and getting great mileage. Friday evening it was on the highway for about a 90 mile round trip and ran 100%!

Saturday morning I went out and drove the truck for about 20 minutes (about 8 miles) Shut the truck off when I arrived at my destination and it stayed off for about 15 minutes. I re-started the truck and it started fine. I put the truck into reverse and backed up about 6-10 feet before the truck shut off. My wrench light and oil light came on.

I checked the oil and all was fine. (Truck is running Rotella 5w40 and has about 5500 miles on it.) Attempted to start the engine and after 3 seconds, it didn't catch so I knew better then to keep trying.

Any help on what this part does would be great! I'm gonna go back to the dealer tomorrow if I get the chance before they close and try to talk to the tech who did the work. Thanks in advance for any input on this situation.

[Rob]

P2291 code ( Injector Control Pressure to Low)

[Briggskid987]

Yea, I saw that in another thread. I tried searching the part # but didn't get anywhere. Not sure if its a fuel sending unit or what??? Also curious if the low fuel pressure issue means that my injectors, and hpop have now been damaged?

[Rob]

I had the same issue twice on my old 2010. the second time around it acted up but did not throw a code. So, I traded it off. after two oil leaks and two ICP issues i decided that the 6.4 wasn't reliable enough to keep paying on it. I also had just under 12000 miles, and had owned it less than 12 months. with yours being a 2010 also, id be careful..

[Rob]

IIRC, the 6.4 doesn't have an hpop to run injectors. the 6.4's injectors aren't hydraulic. could be an IPR sensor. thats what I had replaced when i had the first injector issue

[strivingfirst]

Just wondering what this was. This happened to me and it ended up being air in the fuel system.