There was a comment that the K67 needs the O2 sensors to work.
Well, as I thought, the answer is no.
So for you guys that are getting fed up with O2 errors you can delete them.
For me, because I'm planning on using my Gen3 Arrow system, which has provision for only 1 sensor.
For others, because they are getting fed up with O2 related issues.
Either way, the main thing to take from this is that the K67 does not need O2 sensors.