well this is the strange problem i started the car pulled it out of my drive way turned it off and did not want to start the second time i have a autometer fuel Pressure gauge it was reading 20 psi i waited about 10 mins during that time i cycled the key about 10 times i tryed hiting the fuel tank and during this whole time i have half of tank of gas i was not geting any fuel pressure after doing all of this for about 15 min it finally stared so then i drove the car for about 2 hours with no problems and i turned it off and did the same thing what to do