Air/Fuel Ratio Gauge
 

Was wondering if anyone knew which wire on the o2 sensor i connect to the air/fuel ratio gauge. The wire is located right behind the air intake manifold. Its a grey connector with four wires.

You can't hook up a normal "A/F" guage on this car. It uses a WBo2 sensor that outputs current insted of voltage. I supposed you could hook it up to the post CAT narrowband.....but what good is that:)

You should put in a stand alone WBO2 that will give you values that mean something

oh. That sucks cause i was able to do it on my mazda 6. oh well. thanks

You can hook it up to the narrowband...but like most of those guages they don't give you great data

do you know which wire that would be. Anyone out there have a diagram????

The entire shop manual is on my site, but here is the wire labled on the PCM loom.

However, the info you gather from the rear O2S is useless, unless you are just concerned with your emissions efficiency.

https://www.rx8club.com/attachment.p...id=78027&stc=1

Thank You :worship: