Date:         Fri, 4 Dec 2009 16:25:21 -0800
Reply-To:     neil n <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         neil n <musomuso@GMAIL.COM>
Subject:      Re: NVC: '97 Jetta Check Engine Codes
Comments: To: Michael Hart <mjhart853@yahoo.com>
In-Reply-To:  <557362.24850.qm@web54302.mail.re2.yahoo.com>
Content-Type: text/plain; charset=ISO-8859-1

On Fri, Dec 4, 2009 at 3:30 PM, Michael Hart <mjhart853@yahoo.com> wrote:

....

> P0440 EVAP Emission Contr.Sys. Malfunction
>


Oh yah and....

The EVAP purge valve is likely quite pricey new. Be certain it's at
fault if you suspect it. It should cycle on/off at certain times when
engine running. You should be able to put your hand on it and feel
this. To find it follow hose from charcoal canister. It should be on
LH side of engine bay.

Some have used a Volvo purge valve (Bosch) Still pricey, but less
money. That info is likely in the VR forum. I can't verify if this is
true though to my eye, (was looking at this for my ABA swap..... I
believe it's the same part) the parts look the same.

When they fail, I've read that they fail open. In that case, gas fumes
from fuel system may gather in intake possibly causing intermittent
hard starting.


--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines