Throttle Body Questions.

I have a D15B7 and I could really use some help with this hose coming out of my throttle body.
I cant seem to find where it goes.Ive looked on other cars and it never goes to the same place,and i have had people tell me its a water bypass line,a map sensor line,and a coolant hose. i believe its a coolant hose because it does leak antifreeze but im just trying to get it right
So can anyone tell me where the circled hose goes to cause its plugged. it runs fine and it runs normal temp so idk if it even matters im just curious.
Thanks
I cant seem to find where it goes.Ive looked on other cars and it never goes to the same place,and i have had people tell me its a water bypass line,a map sensor line,and a coolant hose. i believe its a coolant hose because it does leak antifreeze but im just trying to get it right
So can anyone tell me where the circled hose goes to cause its plugged. it runs fine and it runs normal temp so idk if it even matters im just curious.
Thanks
