Date: Thu, 4 Oct 2001 19:30:42 -0500
Reply-To: Stan Wilder <wilden1@JUNO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stan Wilder <wilden1@JUNO.COM>
Subject: Re: 88 Vanagon AFM and rough idle
Content-Type: text/plain; charset=us-ascii
Screw the adjustment screw down that makes it richer, back it out that
makes it leaner.
If you can turn it four full turns either direction you should be aware
of a change in how the engine is running.
I'm an air cooled guy so thats all I can tell you about your AFM
adjustments.
Stan Wilder
On Thu, 4 Oct 2001 20:23:40 -0400 John Graham <theklube@HOTMAIL.COM>
writes:
> My tale begins with taking my Westfalia to the local VW place here
> in
> Charlotte NC to have a coolant leak fixed. While you're at it, I
> asked that
> they look into the rough idle that had developed. It still idled
> okay, but
> was just rougher than before.
>
> They did a compression check and found that one cylinder was 20 lbs
> lower
> than the rest but said that that was probably not the cause and I
> suggested
> the spend a little more time. They 'discovered' that the air flow
> meter was
> not working and that the rough idle was because I was running
> extremely
> lean.
>
> They recommended a new AFM($500) and 'upgraded wiring harness'
> ($150). I
> decided to live with the rough idle a little longer. But later that
> day, I
> discovered that I could get both 'needed parts' from the Bus Depot
> for $119
> each. I hadn't run out of money yet this month, so I ordered them
> both.
> They arrived in the promised time.
>
> There's not much to installing them. But the idle didn't smooth out
> much.
> There's the hex head adjustment on the AFM; I tried turning a couple
> of
> turns in each direction, with no noticable effect. My question is
> on this
> adjustment: Should I have gone further? Or do I need more
> sophisticated
> measuring equipment like the dealer has to monitor things like CO
> level etc.
> ?
>
> thanks in advance for sharing your experience in this area.
> John Graham
>
>
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