"broom broom" idle haha that's really good! Yours sounds exactly like what mine is doing. You just described it better. Thanks for your help.
I'm sorry for such a noobie question, but is the 02 sensor something I can bring to a local shop and have them do relatively quickly? Any idea how much it would cost? I just moved and I don't have a lot of tools available,lift/jacks or the experience to do this myself.