Anyone get code 1911 for cm2250?

[T680]

Hi jt84, good to see u are getting closer to fix ur engine problems
Can't comment on any of it , I have the '14 2350 so I'm following u closely cause I may end up having the same on mine.....
I do wanna ask u or anyone else that own 22/2350's if they monitor their fuel filter and water separator cartridge for steel/copper shavings???? Very small particles did start showing on my both filters when I change them and/or drop all fuel and debris gathered on the bottom of the w separator

Btwy how much was the fuel relief pressure valve, and how hard is to change it???

Tnx

[joed2323]

Are you getting any codes for a fuel rail pressure? Or a code for intermittent power loss??

Make sure your fuses are tight on the fuse block on d/s

[jimeneztrans84]

Hey t680, I wouldn't know much about finding particles on your fuel filters. But I'm sure that can't be good..someone else might comment on it. I think on the 2350 alot of the problems were fixed. It's the 2011-12 cm2250 that came out with alot of problems. Just keep up with maintenance and try to catch problems before they get worse. Fuel pressure valve cost $300 and I installed it in like 30 min. Gonna take my truck today to measure fuel pressures and get to the bottom of this code 1911

[jimeneztrans84]

Still code 1911 fuel rail pressure

[Nilao]

Restriction/leak in the line keeping it from getting full flow?

Something just occurred to me, could the fuel pressure sensor be faulty?

[jimeneztrans84]

There's too much fuel shooting. The only thing that can cause that is fuel pump actuator no?

[Unilevers]

air in the fuel
pump failing
bad actuator
bad relief
bad cal
bad filters
fuel inlet restriction
bad pressure sensor
a sudden spike in voltage

these are the main things for a 1911, most of the time its the air or actuator failing.

[jimeneztrans84]

Replaced filters, relief valve (got power back after swapping) replaced pressure sensor a couple months back but still have a spare one/ I'll swap it out. Pump I just swapped out also but was used one / it did the same thing with 3 cylinder pump too though only 1 time, more with 2 cylinder pump.

[Rawze]

(07-21-2016 )jimeneztrans84 Wrote:  ...
But it still Cuts off for a split second when taking off and shifting to 9th gear or when driving on 10th.
...

There is a protection in the ECM for overpressure/sudden fuel temp change that will make truck feel like you let go of the throttle for a split second, than back. If you are pressing hard on the throttle and the truck/fuel is not fully warmed up yet, this protection will kick in to prevent over-pressure of the rail.