In the morning it started up fine and i pulled it into the garage to rotate tires. when i tried to start it up a few hours later it would turn over, fire intermittently, but it would not start. I can hear the fuel pump turning on and i checked the spark plugs and i am getting a spark. I sprayed starting fluid in the intake and it still wont start. From what i've read it sounds like a bad fuel rail pressure sensor but I would love some more opinions before I buy a $150 sensor on a hunch.