Air fuel help, install

got a a/f/g for free, so no install directions. It has a green, white, black, red wires. dose any one no where thay all go. I am thinking that red=power, black=ground, white=light acc, green=o2. tell me what you think.

the wires on the o2 are 2 white, 1 black, 1 blue.

What kind is it? My Autometer 2 1/16" series A/F digital aka "light show" gauge has a red (positive), a black (negative) and a purple (O2 sensor) wire. If yours has a back light it's probably why it has 4 wires.

i got it, i did some serching, i wanted to hook it up to my ecu. thank

so what kinda gauge is it? :p
and lets see it haha

you should hook it up close to the 02 sensor, it will give you faster reading

Well reading all the info i got you never put it close to the o2. It needs to be hooked up between the plug and the ecu for corect readings.

It's a cheep sunpro gauge but it was free. I'll post pics of the intsall, but it will be on the mitsu so i wont post them if nobody wants me to. I'll make it a how too.