AEM uego wideband gauge issues

[JohnVteC]

Anyone can explain me why the gauge won't read suddenly while it was working fine for 6 months now its stops giving readings of my air fuel. Any help would be appreciate .
here is a link of my problem with this gauge

 

[LiamEk9]

Might be worth checking the lamba.

 

[JohnVteC]

As i read on some forums this shows that my sensor is in life
" The quick way to test your sensor is to turn the key to the on position, the gauge will quickly go through it's various output readings then go to ~14.7. As the sensor heats up if it's in functioning order it will slowly begin to start reading more and more lean until you end up with '---' as your final reading. This shows the sensor is functioning correctly. "

and in a different forum found a solution that the guy found out that the unit has problem and got it replace with new one from AEM
" Talked with AEM and it's on the way back to them.. They are going to replace the gauge.
They had me hook it up directly to the battery and it still displayed the three dashes --- and he said that should NOT happen, it should read a number?! "