Fault Code 1117

[Biglentil]

Update: Tried running power directly from a new set of batteries I installed to the ecu didnt help. grabbed a gear fuel pump from the wrecker. Looks like a new replacement as it was not painted. Put it on the truck. Lift pump making a solid 14psi, new gear fuel pump making 350psi at high idle. Thought I had it fixed. Drove it with a loaded trailer like a bat out of hell for 20 miles over washboard gravel roads over rail tracks. Not a hiccup. Parked it left it idle, 15 minutes late its belching white unburnt diesel fuel smoke, like it does when it goes into limp mode. Argh. Next I want to try having Cummins Insite on it so I can catch the offending sensor or problem when it does that.