installing an air fuel ratio gauage

[lilchubby]

im about to install this gauage in my car. i know it can hook up to the o2 sensor, but which wire? their are 4 i think, so anyone know the right color. someone else said it could wire it in at the singal wire for the computer? any idea where thats at? thanks in advance, forrest.

[slow6]

Re: installing an air fuel ratio gauage

what brand? Its probably just a narrowband-type
probably hook it up to the pre-cat o2 sensor
but i'm not sure

[benavidez19]

Re: installing an air fuel ratio gauage

I got mine hooked up to the purple wire of the o2s infront of the cat. But it wouldnt give me a accurate reading, finally got tired of the thing bugging me at night when i drove so i disconnected it.

[StrtRacer98]

Re: installing an air fuel ratio gauage

I just hooked mine up, it's the purple wire.
I hooked mine up to the o2 sensor (pre cat), its not very accurate but it doesnt bother me, i just got it for the look to be honest. Catches alot of attention.

[97rs4life]

Re: installing an air fuel ratio gauage

yup, purple wire is it

[slow6]

Re: installing an air fuel ratio gauage

its not very accurate as benavidez19 said. Its just a narrowband which operates off of 0-5v signals not a wideband which is much better and is used for tuning. GL