I loosened the bolt to the fuel rail and fuel squirted out. How do I check to see if fuel is going to the injectors? I also but a nail in one of the plug wires and a spark came out. So I assumed it was getting spark. I also checked the rotor and cap and all was nice and clean no corrosion. I also sprayed start fluid in the intake, when i did this it tried to fire up. It back fired. If that is not correct please tell me anthor way. Thanks