[MiniManAdam]

I'm wondering what color wire is the signal wire for the front 02 sensors in a 2004 mini S . I'm wondering on the wireharness not on the 02 sensor .
I'm wanting to tap it for a narrow band 02 sensor I have laying around that is like to install for a cool light show . Lol my daughter who's 10 and is a car nut loves watching the gauges and reporting them off to me periodically as we drive.lol

 

[garybee]

At what point do you want to tap in to it? By the ECU?

I'm not sue what you mean by "tap it for a narrow band 02 sensor" though.

 

[MiniManAdam]

I am wanting to splice into the signal wire ,rite behind the 02 sensor on the factory wireharness under the hood.
I WANT a fuel ratio sensor just to monitor a few things . I wanna keep a closer eye on things exp since I'm installing a launch controller / no lift shift box..

 

[garybee]

Ah, so you have a gauge laying around not a sensor? That would make more sense.

 

[MiniManAdam]

Ah, so you have a gauge laying around not a sensor? That would make more sense.

You sir are correct..

 

[mike1967]

below pic shows ecu pinout for signal wire trace it off the pinout best way

 

[garybee]

As you want to connect into the harness adjacent to where the O2 sensor connects I'd trace the cable next to the plug. See following diagram:-

newTIS

Pin 3 of the connector is the one you want. SW/GN = black with green trace.

 

[MiniManAdam]

Thank you buddy! Exactly what I needed..