I am putting a '99 b16a2 swap into my '93 civic ex coupe. I am using an OBD1 P30 ecu, and a 97 gs-r wiring harness because it plugs into the wires on the chassis harness....but I am missing the connection for the knock sensor on chassis harness. I know all I need to do is extend the blue/red knock wire for it from the gs-r engine harness...but do I have to splice the line and run it to chassis harness and plug it into the ecu with a pin. do i hook it up too that with one i make myself, or is there a pin i can buy at a hardware store?

 

what ive done is just run the wire from the knock sensor straight into the ecu. its gonna be kinda tough getting the pin i think. i tried getting one but had no luck. you can either find one from a wrecked civic or the dealership should have a big case with different pins in it but my local dealer didnt have the pin, so possibly you can order it from them. you might also be able take out a pin from something else that doesnt get used?

its kinda ghetto, but i just stripped the end of the wire and shoved it into the back of the plug and put it into the ecu. worked fine on both me and my friends swaps but ide try and get the pin first