Hello
I have a 2003 Honda Pilot, I was changing the dual linear solenoid and I cannot for the life of me figure out where this vacuum line connect to, normally I take picture but I figured no big deal, I was wrong, any help would be greatly appreciated, thanks !

 

There are two arrows pointing at different things in your photo.

If it is # 4 in this part diagram, that is the transmission breather/vent hose. That hose is left unplugged.