Last year the old ranch dodge died and the boss got a used '08 ford for me. The engine blew a while back and he had a local shop put in a Jasper rebuilt. He also replaced the CAT/regen filter deallie. I picked up the truck from the shop on saturday and went to get mineral tubs that I couldn't haul without a truck. On the way, the engine light came on and the throttle wouldn't work even tho the engine was idling. After shutting 'er down it reset the computer and allowed me to drive back to the shop. He says bad exhaust sensor. Replaced, reset everything and sent me on my way. Yesterday, same thing. He swapped sensors again. Today, yet again. This time he tossed a Ford sensor in, instead of another Napa. Boom! right after I get home and go to hook up the snowplow. They also fugged up the wiring for the plow, so I couldn't even get it hooked up. Advice?