The coil, TFI, Stator, MAP sensor, and fuel filter gave all been changed recently. As stated in my post I get no fuel pressure at the rail when it wont run but I hear the pump run. I replaced the pump in the frame rail yesterday, but no difference. I could go ahead and replace the in-tabk pimp as well, but would rather not if that's not the problem. We do have alcohol added to the fuel here in Arizona, us there another addative I could use to raise the boiling point?