Can anyone tell me where the other end of the small tube should be attached, which is connected on the intake after the MAF sensor, on a 1998 Volvo S70 GLT (see attached picture)? Also, can you tell me what the tube does?

 

this connects to the purge valve on the right hand side of the radiator shroud

 

It connects on a small line on top of the lower radiator hose connection under the cam position sensor. Time mark 3:50 on this video.