help installing AFR gauge
 

Instructions say to tap in to oxygen sensor signal wire? Does anyone know which one it is??? Thanks.

What brand of gauge? The gauge should have it's own dedicated sensor. There is a big difference in a AFR sensor and a O2 sensor.

It is a glowshit gauge.

Return it. They have two different types the one you have is for show. I also have glow shift gauges and if you want accuracy that is not going to help you.


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If you're doing it just to have a gauge that looks cool- that's fine. If you want one to use to watch your ratio- get a wideband with its own wideband sensor to install in the exhaust.
If you just want to hook to the narrow band original o2 sensors, I have the wiring diagram on the desk in my office- I'll post the information when I get back to work.