Sorry, what is "Rear tar." The hose is about 1/2" I.D. and an aluminum plug with a hole in it. It might be a spare that someone dropped into the engine well because it was lodged in the suspension member. It looks like it might be one of the IACV or AAC hoses.
Also Bernie...since the back caps are no longer on the VTC solenoids, do I need to replace them?