O2 sensor eliminator — why?

[Guth_imp]

This might explain the tech behind it: https://www.hondata.com/techclosed.html

Maybe the eliminator is feeding the ECU a stable signal whereas your sensor might have been feeding it a "dirty" signal? Maybe the eliminator keeps the bike in an open loop?

The tech part makes sense to me. I'm more curious about how my bike might have evolved to the level of fluctuation that it did at lower RPMs. Could it be from all of the constant stop 'n go conditions that it is constantly exposed to during my daily commute — might that cause an increased chance of the sensor fouling? Or perhaps it was just luck of the draw and some sensors just aren't quite cutting it? No idea really. Might have to take the sensor out to inspect. The problem is I'm not exactly sure what I'd be looking for. Is there a certain look that a sensor in a good state of health should exhibit? (Say like spark plugs for example.)

Motogeezer: no, I've never seen the check engine light come on.