Need A/F gauge wiring help

[Crispy]

I want to know how to wire my Air Fuel Ratio gauge. I know It's simple, I just want instructions.



Thats my gauge
Red - obviously power, but what source should I use?
Black - ground - where what ground spot should I use?
Purple - o2 sensor. Which sensor? Both? Where/how do I tap into the o2 sesor wiring.

In case you're wondering, no I didnt get directions with it.

[StrtRacer98]

Re: Need A/F gauge wiring help

I wired mine to the Pre-cat o2 sensor , but you can go to the nearest o2 sensor on the driver side manifold...

they arent very accurate anyway so it doesnt matter if your only testing one bank.

red-hot ( get your power from your fusebox, accesory or radio, hook it to your lights if you want )

black-ground (i grounded mine under the carpet, just dropped a wire down the panel, lifted carpet and made a ground spot.

purple-o2 wire (grey IIRC)

just use a pair of wire strippers and move the plastic wire sheild enough you can wrap the wire on the end, make sure to tape up the connection afterward.