This morning when I tried to fire up the bronco, I noticed a very slight hesitaton before she cranked right up, I did not think anything about until I got to the gas station and tried to start it again. When i tried to start it again it would not crank. It was turning over and I could hear the fuel pump (SEFI) running. It was turning over but not cranking. So now I am at work, and the Bronco is sittiing at the gas station. The Bronco has ran great for over two years now since I completed the EFI conversion. I have not driven the Bronco in about a month, but I have been running the engine in the driveway (I fired her last week). I was just wondering were I should start trouble shooting, any suggestions would be greatly appreciated.