AFR gauge

[cohen086]

anyone know which wire to tap into on the o2 sensor when installing an air fuel gauge

 

[bova80]

none, you can't do it that way. you would need to tap the downpipe and put a bung on to install a wideband sensor. you can't tap into the wires because you will screw with the voltage in turn screwing with the readings the stock wideband gives.

 

[Dr. D]

^ agreed

 

[Igve2shtz]

If he is talking a narrowband O2 sensor, he could tap into the second O2 sensor, but I dont know what wire.

All in all, I would not recommend this route. You cant tell anything from a narrow band o2 sensor ... Save your pennies and buy a wideband. It is THE ONLY o2 sensor to get for any sort of tuning. If you are not into tuning, then buy a Dashhawk and get 30 or so sensors at once.