Date:         Wed, 17 Jan 2001 20:55:11 -0800
Reply-To:     Brent Christensen <brent@VANAGON.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Brent Christensen <brent@VANAGON.COM>
Subject:      Re: [Syncro] Air Flow Metre cheap fix?
Comments: To: LA & Glen <lagcook@telusplanet.net>
Comments: cc: Syncro@egroups.com
Content-Type: text/plain; charset="iso-8859-1"

Here's something from David Beierl dbeierl@IBM.NET on the vanagon List, who
I consider to be the sharpest guy on vanagon Electonics (aside from Darrel
Bohler and the ECU's):

Many people have had success by installing a 22 uF 35v tantalum capacitor
across the AFM active leads, cost about $2.50 plus your time and solder.

In the case of a worn AFM, cleaning the carbon track is helpful, as is
slightly relocating the board so that the wiper tracks in a different
area.  You may have to open out the mounting holes a little to move the
board, but it only has to move a little -- 1mm maybe?  The wiper has two
contacts, so you wnat the new tracks to straddle one of the old ones.

A worn AFM can definitely cause poor idle and no doubt highway bucking as
well.  If replacing it cures the problem, then it was *not* the problem
that VW designed the special harness for -- although that harness or the
capacitor may well help.


--A side note from the archives from kenneth d lewis <kdlewis@JUNO.COM>:
 Mount the capacitor inside i.e. under the cover. One lead goes to the
wire corresponding to the "wiper arm". The other lead goes to the wire that
is at ground potential.

Brent Christensen
'89 GL Syncro Westy
Santa Barbara, CA


----- Original Message -----
From: LA & Glen
To: Vanagon
Cc: Syncro@egroups.com
Sent: Wednesday, January 17, 2001 6:35 PM
Subject: [Syncro] Air Flow Metre cheap fix?


Hi Volks,

I am looking for the info on the cheap fix for the "Vanagon Syndrome" .
There is a part available from the dealer but as I understand a resistor or
some thing can be put across some of the wires for the air flow meter. Does
any one have any info on this or can they direct me to a web site with the
info?

Thanks
Glen

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