Oside Jimc (K20a.org)

Honda OEM resistor box into RSX/DC5 engine harness

Low Impedance Injectors (RC or Precision)

The resistor box needs to be installed between the +12v source and the injectors.

Honda OEM resistor box has 5 wires, 1 common wire and 4 wires for injector.

Connector (C104) is used for power distribution on the engine harness, see below.

Here is the pinout of C104:

Power comes into C104 then everything that needs power has it's own power wire coming

out of C104. The injectors get power from C104-19, C104-20, C104-21, and C104-22

At the top of the connector there are a group of yellow/black wires, pin 24 is the far right wire.

Now you have to cut all 4 injector wires, leave some room to re-splice. It is strongly suggest

you use a meter to verify that the 4 wires connect to the 4 injectors. 1 of the 4 wires coming

out of C104 needs to be spliced to the common wire from the resistor box, then the 4 injector

wires get spliced to the 4 load wires from the resistor box.

Use simple crimp connectors and you might want to solder the wires and cover them with

heat shrink for greater durability. Then you are ready to mount the resistor box.