What is this part in my honda prelude 4th gen?

There's a small black box right under the air intake tubing that has two hoses coming out, one of them is disconnected and I need to find where it goes. Unfortunately I can't find it in any vacuum hose diagrams. Anyone know what it may be? I'm pretty sure it connects to the air intake or atleast one side does but there's no open holes I could see

One is the breather hose that goes to the valve cover. The other one I have no idea. MAP sensor? If the breather hose is the disconnected hose, you have a fix.