tehgreyghost

I have a 2000 Hyundai Elantra



I am trying to replace my O2 sensor and my harness melted. So I am trying to splice in a new harness but none of them have the right colors. So maybe you guys can tell me the proper colors.



On the Downstream O2 side:

1-O2 Signal - White 2

2-Ground - White 1

3-O2 Sensor Heating 2 - Black

4-Fuel Pump Relay - Gray



The wires coming from my car are



Red

Red

Black

Orange



I have no idea which is what and where they go. As I can't find any other harness or pictures or schematics. Can you all help me out and tell me where these go?

Stocker

If the harness melted, you may be able to separate the melted-together wires with a heat gun far enough back that you can tell which wire goes to where. If the connector also melted beyond use, you should be able to chase the wires back using the beep/continuity check on a multimeter to where they are supposed to go.



Hyundai was bad about changing wire colors through the years. The only way to be 100% fo-sho is to measure at both ends of a wire.