Intake electrical connection

Hi guys can anyone help me with my problem? Just done head gasket and chain kit on my 08 r56 and am on re assembly stage. On the inlet manifold there are 4 connectors, but 2 connectors are 2 pin, one for the purge solenoid vacume and another one. Does anyone know which goes to which? One connector is grey inside the other is black.
Many thanks Mark.