the extra wires don't hook to anything. double check every wire making sure they are in the correct spot, and make sure you hooked the grounds up cprrectly.
QUOTE
2) Ground Wire: 1: Connect the Brown wire of the AFC harness to the Black wire with Orange bands corresponding to the connector hole as shown above (bottom row, furthest on the right).
3) Ground Wire 2: Connect the Black wire of the AFC harness to the same Black wire with Orange bands as you did the Brown wire. Be sure to connect the Brown wire closer to the ECU/connector than the Black wire.
Failure to do so may result in improper product operation and engine damage.