I bought a Series 5 FC a couple months ago, coolant seals were blown, needed a rebuild. When I removed the engine, I noticed there was no connector on the end of the power steering pressure sensor. I drove the car a few times, and it seemed "ok". Can I wait to replace this, or is this something I need to fix asap? I've looked and I can't seem to find much information on this other than it increases your idle when turning the wheel while driving slowly to compensate for the effort the P/S pump is putting in.

If I'm correct on this I think it can wait just wait to be sure.