The one log gives you two things:
- MAF correction multiplier (i.e. the existing MAF is corrected);
- VE absolute value (i.e. a new VE is calculated from the corrected MAF).
If you can do the MAF part of the tutorial, the VE part is right there next to it (but in a different map).
With NBO2 only (i.e no wideband) you can only do that for CL (non-PE).
With a wideband you can also do that for OL/WOT/PE.