How long has this adapter been in???  Maybe the cap is blown (you can check it with an analog volt meter by switching the leads back and forth between 2 and 4 and looking for needle deflection) or it's possible the the AFM board is wiped out (no pun intended).  You may be able to move the board so that the arm will use a different path on the board.
Karl Batzler
84 Vanagon
87 Audi 5000 S
La Quinta, CA
-----Original Message-----
From: Robert Miller <rmiller@sfsu.edu>
To: KBatzler@EMAIL.MSN.COM <KBatzler@EMAIL.MSN.COM>
Date: Thursday, January 21, 1999 8:08 AM
Subject: Vanagon problem question

>Hello,
>Just read some info on installing a capacitor to the AFM to solve a
>idle/hesitation problem in the VANAGON archives.
>Do I need to try this even if I have the VW adaptor(short piece of cable
>to go in series) installed between the air flow meter terminal and the
>original connector or is this adapter the fix you take about? This
>adapter was a VW tech Bulletin for hesitation and stall for Vanagons.
>
>Thanks
>Robert Miller
>

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