I have my scanner set up so that it logs Maf Htz, Maf lb/min, and Dyn Air lb/min. My question is should the Maf lb/min be exactly the same as Dyn Air lb/min or are they usually off by a few tenths. Mine vary by as much as 2 and as less as a tenth. I would like to know where the Dyn Air readings are taken from, that way I know if I need to adjust the maf tables or not.