The plastic tube goes to the vapor recovery system for the gas tank. There
is a valve with 3 hoses in front of the fire wall. One is that white plastic
tube, another small one goes to the throttle valve for control and the other
goes to the carbon canister. When the throttle opens, the valve should open
and engine vacuum should pull fresh air through the carbon to burn off the
vapors contained within. The tube on the bottom of the carbon canister is
the inlet vent. Check to make sure the screen hasn't rusted in the canister
allowing the carbon to fall out. When this happens, the carbon will block
the inlet and if the vent system is tight, fule starvation and a collapsed
tank is the result.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
John Rodgers
Sent: Sunday, September 10, 2006 4:22 PM
To: vanagon@GERRY.VANAGON.COM
Subject: New Question - Idle Stabilizer

Right under the idle stabilizer valve there is a little rubber piece
that come up and fits to a port on the Idle Stabilizer Valve. There is a
little rubber tit that sticks out off the side of that rubber piece and
there is a plastic tube stuck into it. The [;astic tube disappears going
forward through the fire wall.

What is that plastic tube for, where does it go, and what is the
function of the system that is comprised of that tube and rubber tit.
Curious minds want to know!!!

Thanks

John Rodgers
88 GL Driver