I am building a Factory Five MK IV roadster using a 2001 Mustang SVT donor. The donor ran great before tear down. The engine is in the new car with all connections. I was able to start with direct power to the fuel pump. However, I am unable to start wired through the fuel pump driver module. Inertia switch is good. I replaced both the fuel pump and driver module with the problem unsolved. I am using the wire harness from the donor and am convinced I am missing something in the wire connections. The key and PATS are in the dash as FF manual suggests. Anyone have any suggestions?