hey guys, i got an autometer air/fuel ratio gauge off a buddy of mine and im not sure how to go about hooking it up. it has 3 wires on the back. im assuming there is a power, ground and a signal wire. where would i go about hooking up the signal wire? O2 sensor? stupid question i know but im just really not good at this sort of thing. so if anyone could give some advice it would be greatly appreciated. thanks

yah, on the 02's you wire it up to the b17 pin. check out
scoobymods.com for more info on the pin layout.

also checkout www.autometer.com for installation
instructions.

so all i have to do is put red to power, black to ground and the purple to the b17 pin on the ecu? can anyone else confirm this? thanks for the help by the way

This is correct..Its the next to last plug..pull the plug from the ecu and count down to 17 and you'll see a white wire..Tap this. and when its hooked up.it takes a few seconds to warm up ..

If you are running a catless turbo-back and have a cell-fix, you will need to tap before the fix buy splicing directly before it...

Just a heads up before you decide to tap into the ECU.

-jlee