I think Greg only connected the hose that goes from PCV into catch can. Second hose on the right side of cam cover might be still be connected because judging by how is catch is (by pictures) there's no return hose only an air filter
I own a 04 volvo v50 2.0d without DPF and find the information regarding our hpfp and injectors very useful... no more I feel jelous about Bosch’s CP3 used on JTDs and VAG CRs engines :)