Originally Posted by fahr_side
I wonder if one of the adepts could munge that conversion formula into a custom RR definition. It should be possible as others have added things like a calculated VE parameter.
What people have done is a quick change to the RR logger code with your wideband's mx+b conversion factor so it does the conversion automatically and outputs the AFR value into the log, just like how it converts every other output to units we understand. There is a thread showing how to do it.