Power Harness for FP53U Derby Hacked Computer

This is the power harness which plugs into your stock engine harness to power the ignition system. The FP53U Derby Hacked computer is required for this harness to work. MAP sensor from a 1997-2001 Camry 4cyl is included which is used as a barometric pressure sensor.

Power harness plugs into the engine harness near the brake booster. The 10mm bolt that holds the connector together should not be torqued down very tight, just snug so it doesn't come loose, the "nut" side is only held in plastic and could be easy to damage.

Fitment

• 2000-2007 Ford Taurus (3.0L 2 valve, 8th VIN U)
• 2000-2005 Mercury Sable (3.0L 2 valve, 8th VIN U)

Lead Wires

• Red - Ignition aka lets you have spark, fuel injector control, etc
• Green - Starter aka power it and the engine spins over

Fuel System

These cars have a unique fuel system design. Simply put the fuel pump module controls the fuel pump (max 80% duty cycle) which controls the fuel pressure. Since there's a fuel pressure sensor on the fuel rail, you can hot wire the fuel pump and the computer will offset the fueling to be pretty accurate. On my test car it ran at 82 PSI which is quite high. I suggest for the health of the pump and to run better, run a normal pump (EFI v8, E2000, 97+ Camry, etc) and add in an inline fuel pressure regulator with a return line going back to the tank and adjust the fuel pressure to be 50-65psi. The fuel flow from the fuel regulator will help cool the fuel pump for a longer life and the computer's tune was designed for this fuel pressure range so it should be the most accurate when setup this way aka run the best.