Date:         Sat, 24 Jul 2004 12:27:37 -0700
Reply-To:     Tom Young <tomyoung1@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Tom Young <tomyoung1@COMCAST.NET>
Subject:      Re: Aircooled FI Questions
Comments: To: "J. Harvey" <jtharvey2@HOTMAIL.COM>
Content-Type: text/plain; charset="iso-8859-1"

From: "J. Harvey" <jtharvey2@HOTMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, July 24, 2004 10:44 AM
Subject: Aircooled FI Questions


> The Bentley says the AFM resistance strip should vary between 40 and 500
> ohms while moving the air sensor plate.  My '81 Westfalia (gas/California
> emissions), that died 10 blocks after I bought it, is steadily outputing
50
> to 670 ohms.  I was also getting momentary readings in the 800's on my
> digital multimeter.  Is it safe to say that the resistance strip is burnt?

No.  The AFM resistance strip test is notoriously difficult to interpret.
If the resistance is *changing* as you move the air vane then chances are
it's OK.   At some point you may want to open up the AFM and reposition the
board holding the resistance strip (the most common problem is that the
strip actually "wears out" somewhere along the pickup track) but if the van
was running the AFM is most likely not the problem.

> If you thought that was a stupid question check this one out.  Should this
> van have a full throtle switch?  It doesn't and it concerns me.

Yes.  It's attached to the throttle valve.

> How many wires should attach to the cold start valve?  Right now there are
> three brown wires hacked in to the valve.

The cold start valve has 2 wires leading to it, one white, one orange, but
they should be covered by the sheath of the FI harness.

---------------------------------------------------------------
Tom Young                       '81 Vanagon
Lafayette, CA 94549         '82 Westfalia
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