When I tried AlfaOBD on a Boxer a few years back (I don't have a Boxer now) it wouldn't read the Boxer engine ECU. My impression was that the developer had simply duplicated the Ducato section without changes so it would read ECUs with ISO codes common to the Ducato but nothing else. The engine ECUs listed under Boxer/Jumper in the current version of AlfaOBD are Ducato ones.