Date: Mon, 23 Jul 2007 22:15:50 -0500
Reply-To: Larry or Joan Alofs <alofs@ATT.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Larry or Joan Alofs <alofs@ATT.NET>
Subject: Re: Vapor lock? Static electricity? Help!
In-Reply-To: <000b01c7cd30$7c631120$75293360$@net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It is incorrect to call this static electricity. On the list it is
commonly called vanagon syndrome". You can find lots about it in the
archives.
VW has indicated that it is caused by a resonance in the AFM which
after prolonged operation at highway speed sometimes sends garbled
signals to the ECU, perhaps causing it to drop into "limp home mode"
momentarily.
The adapter or harness that VW produced was priced over $100 and may
no longer be available. A less costly and usually effective remedy
involves connecting a capacitor across two of the AFM terminals. Search
the archives for "capacitor fix".
You should realize, however, that there are many other possible causes
for similar symptoms, so not everyone finds relief with these prescriptions.
good luck,
Larry A.
Paul Chubbuck wrote:
> Can anyone tell me where I could find out more about the problem mentioned
> in this archived 1998 Vanagon list communication, referring to an adaptor
> which deals with a static electricity problem and which is supposedly
> mentioned in a VW tech service bulletin somewhere?
>
> Paul in Fort Collins
> __________________________________________
> Date: Mon, 18 May 1998 02:39:08 EDT
> Reply-To: Modl6971 <Modl6971@AOL.COM>
> Sender: Vanagon Mailing List <Vanagon@vanagon.com>
> From: Modl6971 <Modl6971@AOL.COM>
> Subject: Re: Hiccups, static electricity, wireharness.
> Comments: To: calle.fallberg@SWIPNET.SE, Vanagon@VANAGON.COM
> Content-type: text/plain; charset=US-ASCII
>
> In a message dated 98-05-18 00:50:46 EDT, calle.fallberg@SWIPNET.SE writes:
>
> << Hi there , Vanagon'ners!
> I have a kind of veird problem that I wonder if anyone else has been
> suffering, and may have a solution to :-\
> I have a -88 vanagon with the 2.1 digifant engine.
> Its normally running like a champ but every now and then itīll get
> hiccups!
> The weirdest thing of it all is that itīs almost always happening when
> Iīm out for a little longer drive and the thing that happens is that
> after a couple of hours driving at app. 55 mph the engine starts
> stalling for about a microsec. at the time.
> This could go on for about a minute or two and sometimes it is followed
> by a big black exhaust cloud which is cured by restarting the engine a
> couple of times but the most common thing is that the "hiccups" stops
> and the car runs on like if nothing ever happened.
> The Vanagon has never stopped permanently so itīs only a minor problem
> but nevertheless a f******g anoying one!
> Any ideas ????
> Calle Fallberg, Mullhyttan Sweden
> -88 Vanagon, -79 Saab 99, four Belgian Shepherd dogs and a wife
> >>
> There was a tech bulletin on this 6 years ago. The problem you are having is
> static electricity building up in your air-flow meter causing your exact
> runability problem. The fix, is a small adaptor that plugs into your airflow
> meter and the connector to your airflowmeter. Also you need to ground your
> airflow meter to a good ground, like the fire wall with a piece of wire,
> easy
> to do. I don't have the part number for the adaptor. Call the parts dep at
> the
> dealer. If they don't know what the hell you are talking about, talk to a VW
> tech at the dealer first ( that knows about this adaptor). If that doesn't
> work, post the question for that part on this list. Michael M. 87 syncro.
>
>
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