xchikon

So I'm putting in my ITR this weekend so I picked up a zerg obd1 chassis to obd2a ecu harness to make my life a little easier. I knew the harness had extra wires coming out and figured they were for vtec, etc. I plugged in the harness just to make sure it fit and noticed that the wires where not coming out of the pin locations that vtec, knock sensor, etc would be.

I was following this guide while looking at the pins
https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/92-00-honda-engine-swap-wiring-guide-vtec-non-vtec-2987229/

Here is a picture of the harness and pinouts




I appreciate any and all help, thanks!

xchikon

Bumppp

Fliptard

And your question is?!

xchikon

Are these for wiring vtec? Or i guess the question is what are they for and what would I have to wire and how to have everything functioning

Fliptard

Red wire is ignition power source, black is 2nd O2 sensor ground, and white is o2 sensor signal.

They are for hooking up the 2nd O2 sensor, which your chassis harness does not have.

Fliptard

and the one green one is 2nd o2 sensor control

xchikon

Alright thanks that cleared things up a little bit. There is no ground for the ignition source? And so basically I only need 1 out of the 3 wires? Also how would I go about wiring vtec? I have a 94 del sol s and have heard that these have vtec prewired in the harness. I also have heard that this statement is completely false.

Thanks for all the help!!

xchikon

bump
just need to know where to hook up the red IGP1 wire thanks