Truck dies while driving but only on warm days

Hi scott, today I installed a spectra359m fuel pump, new. And It fired right up, I went and put gas in the truck and drove around for 20 minutes all over town and it ran fine. I got home and washed the truck and I did a quick spray down of the engine (after it had cooled) and I went to fire it up, and nothing, all electronics work. But this time its different Ive never had the truck not start after parking it and turning it off myself. So maybe when I sprayed down the engine compartment I did something, I sure hope its that and Im not still trying to hunt down this stalling out issue. And yes the pump does its 2 second on when the truck dies. And its the 4 cyl 2.2l whats your thoughts on a crankshaft sensor? or hell any thoughts would be great at this point, Iam down a work truck and this truck is my only means of making a living, Im a contractor, but any advice to get me in the right direction is much appreciated, thanks Chris in Folsom, CA

Fuel pressure is tits, all is good in the fuel hood. So time to update since my last go at fixing this issue. To date I have installed a new fuel pump, Air Intake sensor, Oil Pressure Sensor, ECT Sensor, Crankshaft Position Sensor, I took the o2 sensor out thinking maybe i clogged the CAT.... Ignition Control Module, Throttle Position Sensor, MAP sensor I reconnected all my grounds, ran continuity tests,And THE GOD DAMN P.O.S. still stalls, you wait ten to twenty minutes drives the stalls. This mere quest to fix this annoying problem has morphed. It is now a full fledged I will not rest, ever smile again flipping MISSION to fix this antichrist of a truck. Do i sound a lil frustrated. Oh mannnnn. I am now gonna test my ECM. i mean its gotta be, but i will keep this up to date because there atre thousands of us Jimmy owners who are having the same probs. I know ive talked to each and every one of them.