They pinch the hose and pressure test at the fuel filler.  I believe the systems needs to hold 1.5PSI for a few seconds.

Cheers, 

Jeff

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Neil N
Sent: Wednesday, June 17, 2015 4:23 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: 85 Westfalia Weekender fails Evap test.

Would lesser experienced testers not take into account that the charcoal canister normally allows air to vent out? i.e. or does test equipment at CARB type places connect to the black nylon hose at inlet to canister?

Neil.

 > -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On 
> Behalf Of Jeff Schwaia
> Sent: Monday, June 15, 2015 7:49 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: 85 Westfalia Weekender fails Evap test.

> Funny (or not) thing is, a brand new, stone stock Vanagon would never pass
> the CARB laboratory EVAP test as the system is "open vented."   Lucky for
> manufacturers that they never had to have any CARB tests done on their 
> vehicles because manufacturers are considered self-reporting entities.  
> All they have to do is state that their vehicle meets EPA and DOT 
> standards, and they're good to go...
>
> Cheers,
>
> Jeff
>

--
Neil n

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