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  1. Donor Wire Harness Problem

    Factory Five Roadsters
    I have asked in the past about fuel pump and fuel pump driver module problems that were the apparent culprits preventing my MK IV roadster build from starting. We have tested every power connection and all have power except for output from the ECM. There was an occasion where unplugging the...
  2. FFR Ignition Switch Connections to 2001 SVT Ignition Block

    Factory Five Roadsters
    Attached are the Mustang 2001 ignition block connection points from the Ford factory manual and the FFR ignition switch connection diagram. Can anyone tell me what connects to what? Thank you.
  3. Donor Fuel Pump Problem

    Factory Five Roadsters
    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...
  4. No Fuel Pump Power on First Start

    Factory Five Roadsters
    I attempted a first start yesterday on my Mark IV build using a 2001 Mustang Cobra donor. I am using the Mustang wire harness as well. I did not re-flash the PATS as most of the emissions stuff is on the new car (single stage CAT however). Attached is the image of my ignition connection. The...
  5. Using Speed Control Module on Mk IV from Mustang Donor

    Factory Five Roadsters
    I am using all necessary components from a 2001 Mustang Cobra donor for my Mk IV roadster. Do I need to use the speed control module? I am not flashing the computer. Let me know if anyone has experience wit this. Thank you.