Does anyone know which color wire is the signal wire off the rear o2 sensor? I can not tap in off the wire to the ecu since I have a straight through exhaust and have some things wired in down by the sensor to stop the cel. Any help will be appreciated. Thanks Brian

so you want to know what the wire looks like by the bung? i have no clue what your asking. so you have the cel fix and you want to install it? where do you want to install it?

I need to know which wire at the rear o2 sensor I need to tap into for the air fuel guage?

What color wires do you see there?