Air/Fuel Ratio Gauge

[97dsmbishi]

hey guys, i have an autometer a/f gauge, i've already hooked up the power, but can't figure out where the violet (purple) wire goes. i know it goes to the o2 sensor, but there r 4 different wires. i'm sure someone has done this mod before. HELP. went to the dealership, to get the wiring diagram, and they were TOO BUSY.
thanx in advance!
phil

 

[RocketBoy]

hook it up to the blue one

 

[CL MaNTis GST]

Ok here is the simplest way to do it.

just tap the wires coming out of the gauge to the following wires from your ECU.

hope this helps.......
g'luck