Normally it should come with a diagram. Mine has 4 wires, one goes to the O2 sensor, one to ground, one to ACC+, and one to the lights so it comes on at night.
Also take notice that 03 and early 04's came with 0-5V variable voltage wideband oxygen sensors, so all you need is to splice, solder, heatwrap and connect to your A/F guage and BOOM!
Where can I find a good air/fuel gauge with number reading for a good price? They are expensive, unless it's just gauge with dots telling you around where you are with lean/stoch/rich sections.
A forum community dedicated to Hyundai Tiburon owners and enthusiasts. Come join the discussion about performance, troubleshooting, reviews, maintenance, and more!