I just put a TPI on my motor with the Accel DFI harness/computer and the motor will fire up put then die almost instantly....i've tried bypassing the distributor wire and checked voltage.. what could this be, i'm not very familiar with the DFI yet so any help would do.
It sounds like your ignition only has power during cranking and not with the key in the "run" position. I'd check that first. The other thing would be if the fuel pump only runs in the crank position. Do you hear the pump running when you turn the key on?