2018 f350 dually advance trac and hill descent unavailable ?

[Smokin 6.0]

I’ve been having issues with my truck surging and unable to pinpoint why. It will stop when the cruise is set. Today got a message for advance trac and hill decent unavailable and the wrench light and the truck would barely move with the pedal pushed. Shut off and restarted and it seemed ok for the next few miles until I got wheee I was any ideas ?

 

[6.0 Tech]

What codes do you have?

 

[Smokin 6.0]

P2122
P2138
U3013
U0401

I have replaced the accelerator pedal a few months ago with a OEM Motorcraft pedal. This didn’t help the surging. But today is the first day I got anything like this

 

[6.0 Tech]

Those are throttle pedal codes. I just went thru a similar issue on my 6.0, turned out to be a loose pin in an inline connector that seemed fine when testing it, but I tightened it out of frustration and fixed my issue. I’ll have to look at the wiring diagrams tomorrow at the shop, and see if I can’t help you out a bit

 

[Smokin 6.0]

Please. I changed the pedal and am not sure where else to go with it