There's a very large "screw head" on the throttle body that controls
the idle; it's a bypass and it's temperature independent.  Other
components of the FI system, notably the aux air regulator, help set
idle when the engine's cold.

But... the idle adjustment screw is the last, *the very last*, thing
you mess with in this situation.  The way the FI system "self
regulates" means that, in theory, a Vanagon could go its whole life
without having this screw adjusted.  So, failure to start and failure
to idle is *almost always* an indication that something else - mainly
ignition and other FI components - needs fixing.
----------------------------------------------------------------------
-----
Tom Young                      tomyoung1@home.com
Lafayette, CA 94549        '81 Vanagon
----------------------------------------------------------------------
-----
----- Original Message -----
From: "Matthew Libby & Denise DeWolfe" <matandded@netway.com>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, August 26, 2000 7:33 PM
Subject: Idle / Plugs / Thanks!

> How can the Cold and Hot Idles be adjusted on my 81 Vanagon?  It
idles
> really low, and today would not start, I think because it wasnt
getting
> enough fuel?  I kept turning it over and foolin with the gas peddle.
It
> finally started and stalled a few times, but I got home :)
>
> What do listmembers reccomend for spark plugs.  I used only BOSCH in
my
> Old 1600sp, since they did not have the habit of seizing and ripping
out
> threads, is this also true with an 81 2.0L, or are there better
plugs on
> the market?
>
> PS- Oil change went great today.  Thanks for all the help.  The ASI
is
> noe enjoying a vintage Synthetic 15W50.
>
> Matt & Nise
>
> 81 ASI Riviera "????"