Electronic Stability Control Related Problems of the 2006 Chevrolet Silverado 1500

Electronic Stability Control problem

We were driving and started running really rough and the check engine light came on. It said reduced engine power took it to a shop they said it was some wiring they replace the wiring about a month later I was parked at home started the truck and it was during this same thing angelite I just turned on running rough said low engine power I took it back to the place we had to work done they said a wire jiggled loose and they screwed it back in said I was good to go last week I was taking my truck to get it inspected was fine all the way to town parked it at the shop go in and tell them I need inspection they come out start the truck same scenario as before engine light was on low engine power running rough couldn't get it inspected they put the code device on it and it said throttle position sensor harness something like that.