what is a 89 civic ek???

I thought 88-91 are Ef's?

But anyways if you are running OBD1 injectors you should put all of the wires that go to the resistor box and solder them together and remove the resistor box.

I was going to be running OBD1 injectors in my Rex but found some OBD injectors that you have to use the resistor box.