Subaru Sambar Supercharger Oil EP05

[@victormmexicano8122]

I have a 1992 Sambar Dias II (KV4) I noticed a plastic Phillips knob on the top left corner of your engine bay. There's a hose that connects to the air intake. On your vehicle it seems to be tighten all the way in. The one on my Sambar is barely on. Do you know what it does? One of the hoses that comes out of that connector seems to go to the supercharger

[@CafeRacerLab]

I'm not sure, the vehicle has been sold.

[@victormmexicano8122]

@@CafeRacerLab thank you