THis is the target AFR table. It is used by the lambda control system to calculate the error of the current read lambda and the targeted lambda. Note the VE equation also uses this table directly. If you map the engine, then change the target AFR table (i.e. make it 10% richer) then the final fuelling will lalso become 10% richer. It is best to set this table up first before you begin tuning.


More details are here.