Hi, I have a 99 grand cherokee and one day I was driving and it just shut off. It started back up and I made it home but it happened again and again until finally it wouldn't start back up. I put a new fuel pump and filter in and that didn't work. I replaced the oil temp sensor and reset the computer. Nothing. Please help

 

Crank sensor would be where I start, they are pretty notorius and they will kill fuel and fire if they fail.