Rep Power: 789

Installed a AFR Gauge, Reads All the way Rich Constantly. I Just replaced the O2 sensor. Still Reads Rich.. Its Not Running all the way Rich. Doesnt Puff a cloud of black smoke.. So I dunno. Anybody ever hook these up before?

 
Rep Power: 789

Just Checked it with my DMM its got 1.750 Volts Steady...

 
Rep Power: 697

If it's not a wide band they're really pretty useless. Mine acts more like an EQ then any sort of tuning tool.

 
Rep Power: 1125

what brand is it? You may be able to contact the manufacturer and get some tech support. I don't know what the voltage should be