Have a 94 Grande CHerokee, 5.2 V8. Stranded in the rockies, Mechanic can;t figure out why it wont start. If you turn the key on, the fuel pump runs for 15 seconds (normal) then shuts off. It will not start at this point. If you leave the key in the run position for about 1 minute, the fuel relay clicks like a flasher relay briefly, then the check engine light comes on. At this point it will start, but not confident it will stay running to drive the 5 hrs home. Any ideas?

 

Look like is related to security.