Ok i know the narrow bank sensors are not accurate when scanning wot.

How does the narrow band work at part throttle and idle. I'm trying to understand the switching back and fourth. How does the computer actually know its at 14.7 if the narrow bands are not accurate. Can someone please explain.

The reasone I bring this up is i noticed also in the tuning the tool you change various patters as far as switching time and all that

Chris