i have a 92 intgegra gs and i want to hook up my af guage. it says to hook it up to the 0s sensor signal wire. where is that and how do i go about doing it?

 

well I have a 95 gsr and I tapped into the cigarette lighter 12 Volt power for the ignition wire of the gauge and then I hooked the ground to a screw under the dash, and the O2 sensor wire on my car was the white one, the wire is found under the car by the O2 sensor and its connector, I cut the insulation on the wire and the soldered the gauges wire to it after running it through a rubber grommet on the passenger side of the firewall, hope that helps, your car might be a little different, go to a search engine and type in "air fuel ratio installation" and look to see what the right wire to use is on your O2 sensor, it may be a 1, 2, or 4 wire sensor, have fun