Just put new crankshaft sensor on. Why wont my truck crank everytime I turn it? on 1997 Chevrolet 1500 Pickup

I can get it running, cut it off and on a few times and then nothing. It will turn over but not crank. Timing is good and aligned, its getting fire. Put new distributor cap on. I have put a new throttle body on. What can it be?HELP!!

1 answer
Sounds like you getting close, what is your fuel pressure (key on engine off) then what is your pressure after you turn the key to the off position?