Maybe someone can help or has had a similar/same problem. I just replaced the factory fuel rails and regulator with Prof. Products rails, braided -8 and -6 line to the rails (not the entire car though) and put the intake back on my 1993 5.0 LX. I primed the fuel system and checked for leaks, no leaks found. I also noticed the fuel pump runs continuously, will not cut off after 2 seconds like it did before. It runs until I turn the ignition switch back to off. The car will also not start, but apparently is getting fuel. Anybody have the same problem or know what this may be? EEC? EEC power relay? Fuel pump relay? Any help would be appreciated. Thanx.
1993 5.0 mustang fuel pump runs continuously 
