AEM Wideband help
 

I'm trying to get my failsafe gauge to work but its constantly stuck at 18. I have wired the o2 sensor and the power and ground, but where do the white and blue wires connect too? I looked in the other threads but couldn't find anything


Thanks

You mean it is stuck on 18 on the display? This means it's getting max voltage.

I would unplug everything but the essentials (red wire, black wire and o2 sensor connector), and check to make sure the sensor and gauge function properly.

Also check the pins on the o2 sensor connector to make sure they getting contact.

Calibration done?

No calibration on the AEM failsafe. As long as the O2 sensor connector is plugged in and the red wire has 12V and the black wire has a good ground, then the gauge should work properly. If it is displaying 18.0 AFR which is max on the gauge, then the sensor is either bad or damaged or in normal air where that would be the correct reading. The fact that it is displaying anything means the 12V and ground should be good.