bmiller17

I just bought a universal o2 sensor for my 94 honda civic ex. The 4 wires from the new sensor are grey,black, white,white....could someone tell me what wires go to what on the other end of the plug.. (black,black,green,white)

snatch

It didn't come with any kind of sheet telling you anything?

bmiller17

it did, but it didnt have my wires listed on there...or maybe it did and i just didnt understand it

snatch

What do you mean, "your wires".

bmiller17

the wires that are from the plug...(green,white,black,black)

snatch

Makes sense now.

The white wire is the signal wire, and one of the black wires is the heating element I believe. I'm not sure about the other two.

snatch

Try this link.

https://honda-tech.com/zerothread?id=797499

khaotika

All the diagrams on the above link are gone. Could someone tell me where the white wire for the signal connects to (on the car side)?

symph0ny

The two blacks are ground, I think the green is heating element.

I didn't have to check the wires on my o2 sensor, I just remember reading it that way... black is usually a ground on automotive wiring though.

khaotika

yeah, that much was covered in that link. but it doesn't say how the white wire gets the signal to the ECU(?).

schardbody

if you cant easily find this info on your own through the HUGE archive you dont deserve help.