That subject should read "Orphaned HOSE needs home."

I just finished replacing spark plugs, coil packs, spark plug wires, coil pack connectors (with more mating connectors to come to replace the ones I broke) on my 2002 GS300. I was taking a picture of every bolt, nut & hose I removed, but when it came time to put it all back together, some of the pictures were missing! So it's in the area of the EVAP or vacuum hoses I'm having a little trouble. I thought I was done, when a small, orphaned hose popped up and I could not find a place to stick it. I've seen it in some pictures I found upon searching that I thought might help me to place it, but no winner yet. One end is anchored to the throttle body on the right (as you face the car while in front), near the top, almost all the way to the rear. But in all the pictures I found online, it then makes a downward turn and disappears. So I probably gave its shady retreat away to some other, more agressive hose.

Please take a look at my photo and you'll see the lonely litle guy looking for a home. Also attached is a drawing I found here showing part numbers for the EVAP hoses. If you can figure it out, pease tell me what hose this is. It may not even be on that diagram however. I noticed some of the hoses show someoting like L=150, which I thought meant 150mm in length. But my little hose is 165mm long, longer than any on that diagram. So any help you can offer is appreciated. Thank you!

 

After more study, it appears this hose is part of the vacuum system. Attached is the diagram from my engine bay of the vacuum system. It shows a hose leaving the "air intake chamber", which I believe is the same one I am trying to route. The diagram shows it going to the "vacuum tank." I believe the PN for the tank is 77771-30050.

Does anyone know where this vacuum tank is? I've been looking online and in the car, but have not found it. Thank you for any help you can offer.