OK guys...I am new here...hope there are some 7.3 specialist out there. replaced throttle sensor 1300 miles ago. Coming home from the hills truck has been running for 2 hours or so some with overdrive on some without (hills) when suddenly it appears the truck has died. Pulled over...the truck is at idle but no pedal. turn it off...start it up runs ok pedal appears normal. get to town truck feels like it wants to go from 1st to 3rd at every stop sign or at a minimum run very strange at a start. Mechanic says code says throttle position sensor but cannot replicate. Any thoughts? 1300 miles on a new sensor?