I gave my 2 cents on it being potentially the wiring harness by the firewall because I THOUGHT that is what was causing my cruiser with similar symptoms to randomly die, as I was getting the truck to run again when jiggling the wires against the firewall. It must have just been a very random coincidence as I just spent 3 not very fun days replacing the whole harness and am having the same problem. I also just replaced my fuel pump as I figured since it only happens when it’s warm and the poor original pump has been feeding a supercharger for the last 30,000 miles that it might make sense. Nope. At this point all my fuel stuff is up to date so now I too am starting to look more closely at each specific sensor. Anyways, just thought I would share my update this has been a good thread to keep me questioning my truck and it’s good to see it seems you are slowly closing in on what your problem is.
Cheers!
Cheers!