Is there a way a I can also extract Volvo specific codes ("EFI xxx")
This would require Volvo specific software and I am not aware of any readily-available software which would work in this situation.
... more importantly send the ECU commands for activating specific components and functions.
None of our software or hardware is currently bi-directional compatible (which is what would be required here). The boys are working on some things for OBDLink though.