I’d check resistance in wires from sensors to pcm, that checks out ok, then most likely pcm…

 

Hello again all! Sorry for letting this post go stagnant. I have however "fixed" the issue and the truck made a 400 mile round trip without as much as a misfire, opposed to before where on a good day it would make it 2 miles before going into limp mode.

My final attempt at a fix after getting a Bluetooth ODBII reader (as recommended) was to unplug the EGR, and poof. Problem gone. Now all i have is two DTC codes for the EGR. Now comes the decision to either replace it with an OEM or delete it. Thanks for the input everyone!

 

Likely its just stuck open from rust. Take it off, smack it against a piece of wood to clear it of debris. Re-install, reset the computer, and see if your codes are gone. If that doesn't clear it up, replace the EGR.