6.5 w/ auto trans. code 22
 

code 22 tps sensor low . reads 35 , stays there thru full thottlr range, have no rpm readings on trans input sensor ,output sensor , replace tps. changed tcm with junk yard one . ohm wiring harness between sensors & tcm plug , tach on dash working . truck won't shift out of second ,out of idea's , any one have this problem.

fwiw

I have had a blown fuse cause the truck to only have 2nd and reverse. Have you verified the fuses? Have you checked for voltage at the sensors?