Hey guys, I am confuddled about an issue I just started having. Basically, I parked my GT about 2 weeks ago. Fuel level was low but not quite on E. Well, I went to start it today and it wouldn't start. It turns over fine but it won't start. I went to the gas station and got some 93 to add just in case it had gotten too low, brought it up to 1/4 of a tank, still no start. So I began looking around. I pressed in on the schrader valve to see if any fuel would come out and got none. I pressed on it again as my wife turned it over and WAH LA... it started. It ran pretty decently until I went to give it gas which then it sputtered and when I hit it a bit more it stalled and will only start when I hold the schrader valve in as it's being cranked. It will idle and I even got it backed up to my concrete pad. No CEL's at all. Any ideas? Maybe fuel pressure regulator? I'm stumped as to why it won't start without the schrader valve being pushed in. Any help is appreciated.