If the brand new afm has the problem, the problem is likely bad grounds,
which also cause electrical noise.

Marshall
----- Original Message -----
From: "Leon Korkin" <korkwood@WSHOST.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, January 19, 2002 11:20 PM
Subject: Re: AFM upgrade using 16 volt tantalum capacitor

> Marshall,
> If this is the case then why brand new AFM had the same problem?
> I couldn't get dirty that quickly, could it?
>
> 1/19/02 9:02:25 PM, Marshall <mjruskin@HOME.COM> wrote:
>
> >An even cheaper solution is to open up the lid of the AFM, and spray
> >electrical contact cleaner over the resistive surface.
> >
> >Run the wiper back and forth a few times, let dry and close up.
> >
> >This method doesn't require soldering, and totally removes the problem in
> >*most* cases - it doesn't just hide it like the pigtail or the cap fix
does.
> >
> >Marshall Ruskin
> >84 Westy
> >Winnipeg, Canada
> >----- Original Message -----
> >From: "developtrust" <developtrust@HOME.COM>
> >To: <vanagon@GERRY.VANAGON.COM>
> >Sent: Saturday, January 19, 2002 10:29 PM
> >Subject: AFM upgrade using 16 volt tantalum capacitor
> >
> >
> >Today I made the AFM improvement installing a 16 volt tantalum capacitor
> >using the instructions on Harald and Nancy's web page.
> >http://www.geocities.com/harald_nancy/intermitt._syndrome.htm
> >
> >Steve Freyling who is a new vanagon friend from this list down the street
> >from me found the 16 volt tantalum capacitors for about $1.13 each which
we
> >got to ensure they were new versus the ones I found for 35 cents at a
> >surplus electronics place. We wnated to make sure they were new and not
old
> >to avoid any unkown problems due to the unknown age of the surplus
> >capacitors.
> >
> >When I went for a test drive I was very, very, VERY impressed witht he
> >results, and very surprised at the positive improvement. I was surprised
to
> >find that the engine performed noticably smoother at all RPMs including
slow
> >speeds of 30 to 40 MPH. I thought I was imagining things and contacted
> >Harald who said he too found improvement at all RPMs.
> >
> >I just thought the list should know how easy it is to do this under $2
fix
> >ont he AFM versus the over $100 harness you can buy.
> >
> >This AFM fix took me less than 5 minutes to accomplish by soldering in
the
> >capacitor plus some extra time for clean up to vacuum out the AFM and get
> >rid of any dust or dirt.
> >
> >I encourage everyone to make this upgrade. You will be very happy that
you
> >made the effort.
> >
> >A choice between over $100 for a pigtail harness or less than $2 is an
easy
> >choice.
> >
> >William Polowniak
> >1989 Vanagon GL
> >1988 Mercedes 300 SE
> >
> >