You
could do that, or you could just figure out which wires in the engine harness go to the VTEC solenoid and VTEC Oil Pressure Sensor.
This should help:
http://www.hybridgarage.com/tech/5gt...html#ECUpinout
I would just run the wires from the ECU, through the firewall, and up to the group of plugs at the passenger's side strut tower. Connect the wires there.
hih
:edit: oh, and btw, excellent work on the harness. You should be very proud of yourself for taking the time to clean that all up and make it new again. Good job! :goodjob: