Alright 1 day my gauge wasnt reporting real time data to my gauge, so there are 3 options right?

1 check gauge but gauge still reads appears to be in a default mode but still completes self check fine no prob

2 o2 sensor bad but yet no code thrown for engine light though i have a stand alone ecu, maybe the sensor fault switch gets turned off or something ?

3 sensor harness but i also have an upgraded sensor wire


Any one have this prob or know whats what?

kimo