Im having a similar problem with my 97 Land Rover and im at my witts end with it, has ran beautiful all the way up until 2 months ago. I shut it off to run in a store came back out and it wouldnt start, just spin over, acted like it was running out of fuel. Opened the gas cap to make sure I had no vapor lock, waited about 15 mins and it started right up and ran great all the way home n for several weeks. I was driving it pulled into a shopping center shut it off about 30 mins later came out same issue, it never restarted at all I had it towed to a buddys shop n have replaced the fuel pump, Crank sensor, drained the fuel just in case I got bad gas last fill up, just ordered a Mass Air Flow sensor just in case it was going out? While replaceing the Crank sensor the cover fell apart in my hands, is it needed? I tried finding a replacement online with no luck? My fuel pump doesnt sound like it kicks on? My battery is about 3 years old, n is now dead? Could it keep the fuel pump from kicking on? Im so lost with this Rover n there is nobody within 100 miles of me that even works on them. Oh n the idle has been extremely high for a while now, my old mechanic in florida had to turn the idle all the way down for me to be able to get it home last time any help?