no fuel. crank sensor?? pcm??

i cant get full past the injectors. not sure what it is. thought it might be the crank sensor but not sure where it is. can anyone tell me. also i swapped motors in the car and the car started fine with the old motor so would the pcm go bad just from sitting while swapping motors?? any ideas??

not usually no. did you pull the fuses when you hooked everything back in? if no, you're supposed to do that or you can short something out.