Wiring the Ford ECU for the New Coyote 5.0L Crate Motor...

We have had a few customers ask how to interface the engine management system for Ford's new Coyote 5.0 engine.  If you haven't seen this yet, check it out.  It is an awesome package.  The new five liter engine, throttle-by-wire, complete and turnkey.  Tons of power. 

Wiring the ECU with an ISIS 3-Cell Kit is a breeze.  Ford did a great job designing this wiring harness and made everything simple.  There are only a few wires off of their FRPDB (Ford Racing Power Distribution Box) that you need to connect to the POWERCELL outputs. 

Blunt Lead 1 (Red/Light Green wire) gets connected to POWERCELL 1 Output 3 (Light Green wire) which is the ignition signal.

Blunt Lead 2 (Dark Green) gets connected directly to the fuel pump positive. If desired a relay could be used to switch this from a positive signal to a ground signal and then connect it directly to a MASTERCELL input and then just connect the fuel pump to the rear POWERCELL. If you wanted to do some modifications inside of the Power Distribution Box, you could probably rewire this to a ground signal output.  Give us a call if you want more info. 

Blunt Lead 3 (Red/Light Blue wire) gets connected to POWERCELL 1 Output 4 (Light Blue wire) which is the starter signal.

Blunt Lead 4 (Dark Blue/Orange wire) goes to the clutch interlock or neutral switch depending on the type of transmission.

Blunt Lead 5 is the tach signal

Otherwise connect the main feed to the Power Distribution Box to the battery and connect the grounds as noted. That is it for the connections between ISIS and the engine harness.

Contact one of our technical service guys with more questions on how to wire this, or any other ECU into your car with the ISIS Intelligent Multiplex System. 

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