hey guys this is my first post and i have a problem that i hope someone here can help with. the truck has a 3.9 auto trans with 121,000, it hasnt seen the road in a couple of years but ive tried to keep up on the maintenance, anyway i started it to move it out of the way it ran like it was misfiring then stalled and hasnt started since. i put a new coil in which wasnt the problem, the diagnostic found codes p123(tps), and p1388(auto shutdown relay), i swapped the relay and it did nothing, no idea where to proceed, please help.

 

it turned out to be the crankshaft positioning sensor for anyone withthe same problem.