On integra's the power steering system supplies the VSS with the fluid it needs. Im not sure if you need this or not, but what I did, since I put a Manual Steering Rack (1991 Civic Standard) onto my 90 Integra to get rid of the PS. The outlet is a different size than the inlet, well I simply got a length of hose (6") poured PS fluid into the VSS and slipped the hose over it and tightened one end down, then continued filling the other end of the hose until it seeped out, then quickly slipped it over the end of the VSS and tightened it down as well.
Brian