i am trying to hook up a afr guage and it is telling me to hook a green wire into one of my 02 senors wire ... but which one do i use????? please if any body knows please help me

 

Are you hooking up a narrow band or wideband gauge???? If it is the narrow band, then it is the purple wire of the stock 02 sensor, you know where the stock 02 sensor plugs into the OEM wire harness...the purple wire is on the OEM harness side, not the 02 sensor harness...understand???

 

If its narrowband, I think there is a how-to in the appropriate section that will help you tons. Includes pictures of said "purple wire".

 

Please dont hook any afr gauge to your stock 02 sensor... It changes the resistance in the circuit and by doing say you change the reading the computer sees. Plus... They dont work right without a wideband 02.

Please stop... right now.. stop

 

Yea what you doing??

The only time you mess with the NB O2 sensor is if your installing a LC-1 that comes with both a NB and WB output. There is a write up for this on the RLforum (sorry can't link it since the forums don't get along).