This table is active only when the O2 Control function is enabled and the system is actively in closed loop control. It controls the Duty Cycle of the EVAP Solenoid under these conditions. Under these conditions the O2 Control function can correct for more vapour than when in Open Loop, without affecting the engine.  As such it is normal to see larger duty values in the O2 Active table compared with lower values in the O2 Inactive table.