Need help! 450cc /resistor box install on obd1 civic
 

Okay, I've figured out that the resistor box has 4 black wires and a red wire. Red hooks to the 4 injector wires on the harness, and 4 black wires go to injectors.(1 each) there are 2 wires on my injectors tho, I dont know where the other damn wire goes???!! can anyone help me out? I used this site as reference: http://www.hondata.com/techinjectorwiring.html