i have a cx (one wire o2) and want to make it into a 4 wire o2. does anyone have a how to, on wiring it? im using a p75 ecu.

Thanks

also, i searched

 

i would just get a z6 engine harness... it plugs right up... all you will need to do then is add the wires from the cx side to the ecu... if you take the wires out of the plugs on another harness and pin them into yours it will be nice and clean ... you will also have vtec wiring on the z6 harness so if you have added your own vtec wires you would need to do these the same way as the o2 unless you want to leave the 2 plugs hanging and your existing wiring there... i believe 92 model civics were prewired for vtec on the ecu side, correct me if im wrong

 

this might help...i don't understand why you're using a p75 though...but check it out...these are instructions using a p28...i'm guessing everything is supposed to be ran the same with the exception of the A6 pin...someone correct me if i'm wrong...

https://honda-tech.com/zerothread?id=1180819