Unless you live somewhere where there are no chain parts stores, you can either rent or borrow a fuel pressure gauge. Even though I strongly feel that this is either a case of vapor lock or overheating fuel pump relay, I will run down the other possibilities for you:
1: Overheating ignition contacts in the ignition switch.
2: Overheating coil getting ready to fail.
3: Overheating relay set in the ignition system.
All of these are easily actionable items. Relays and ignition contacts can be easily tested with a test light or meter. Fuel pump pressure is easy to test if you go rent or borrow one from a parts store such as Autozone or Pep Boys.
Each piece of advice you were given was 100% usable. It's not our fault you don't want to believe it or try it.
Wednesday, April 10th, 2013 AT 3:40 AM