I need help I am trying to get my damn A/F ratio gauge hooked up and I have the power and ground but i dont know what wire to hook the purple wire up to...I Know it is the O2 sensor but i dont know what wire..also I want to hook it up closer to the ecu because there is no way i am getting anywhere near that O2 sensor..so If anyone knows what wire it is i could sure used the advice..Thanks!

 

technically with two exhausts and two O2 sensors, you'd have to split that wire or have two AF meters. If you decided to split, i'm not sure how your meter would measure the dual input.

 

hmm..I thought that maybe there was just a single wire at the ecu and then it split down to the 02 sensors...so i could just splice it into the wire by the ecu but i dont really know..but do you know what wire on the 02 sensors i would have to splice into?

 

that i don't know, i've never installed one of those gauges before.
My suggestion would be to go check it out in the online repair manual. it's in the link page.