Got this code the other day so I've been reading up and did a little investigation under the hood.

I don't see any corrosion and rubs on the wires.

The truck seems to run fine down the road empty but under a load (had 10, 10' telephone pole (8-10") ) when hitting hills it seems to bog down. It has a edge juice w/a, been running on 0.

Do I replace the waste gate or is there other stuff to check before I start replacing stuff.