I replaced the accelerator pedal and sensor all in one and the plug that plugs into it and I'm still getting P2121 P2127 and P06A4 . I have no idea where to go from here . Can someone please help me figure this out . I have a 2008 Dodge Ram 3500HD 2wd Dually and these errors are driving me crazy . I don't know if it's a bad sensor somewhere or bad wires or bad ground . The truck has never had any problems at all. I inherited the truck from my Father in Law who passed away from stage 4 cancer and I try to take care of it the best I can. I always change the oil every 5k miles cus I use Royal Purple and I put a 5" turbo back exhaust and CAI by Injen and EGR full delete and EFI live by Ryan Hardaway . I never beat on it I tow maybe twice a month and never race on it. Mostly tuner is set for gas mileage . But these errors are driving me crazy.

I had the batteries tested and alternator tested and they passed. I replaced the accelerator pedal with a new Dodge OEM and replaced the plug. I'm at a stand still right now .

 

Sounds like you could have an issue with the wiring somewhere. Take a look at this short thread:

https://www.cumminsforum.com/forum/0...6a4-p2127.html

 

Thanks I just seen that one too. I'm going to take it in to the Auto Diesel place by me that I trust they can figure the wiring out. I can fix everything but electrical . I don't have patience for it .