I am running a b16 obd-0, and thus i have 2 o2 sensors. I want to hook up an air to fuel gauge and was wondering if it makes a difference from what o2 sensor i splice from.

 

pretty sure that the gauge will not work correctly without a wideband o2 in which case splice from the wideband. if it does work correctly then i would go from the primary o2 (the one that you didn't have to run the wire to)

 

why wouldnt it run with out a wideband o2?

 

It will work fine without the wideband but will not be very accurate. Hook the A/F gauge to the primary O2 sensor and it should be fine. If you want an accurate reading of the A/F ratio get a wideband setup.

 

if your just talking about a regular autometer narrowband afr gauge, then just hook it to the first o2 sensor and it will work fine. its really not worth the money or hassle though.

a wideband o2 setup will come with its own meter/gauge and will cost about 6-8 times as much as the narrowband gauge.

 

Thanks for your help guys