Hey scotty. I have a 1997 jeep Cherokee had it on a trail last Thursday and it died only way to start it is if you pin the throttle we've done a fuel pressure check. Once start it'll be at 50 then it'll jump fast between 30 and 50 and once off there's no pressure I've been told could be fuel pump.. or it's my injecters what could be wrong?

check to see if fuel lines got bent, if not, replace the pump