There's a electrical switch on the throttle body. On the 2.1 it can be
a pain to adjust. Mechanic may have attempted to adjust it. The switch
can fail and-or be corroded or mangled enough that it's nearly
impossible to adjust while throttle body still mounted, or at all. One
can replace the switch or just the entire throttle body if other parts
like throttle shaft are worn too far.

A few pics showing switch adjuster cam etc. :

https://picasaweb.google.com/musomuso/New1988Westy#5748198481366002162

The cam on this switch was seized up. The metal on the adjuster cam is soft.

There should be lots of info in the archives on this part here:

http://gerry.vanagon.com/cgi-bin/wa.exe?S1=vanagon

search "throttle body switch"  "throttle switch"

On 2/14/14, Art Jury <kf7gd7@gmail.com> wrote:

> Hi I have just joined the Vanagon religion with a 1990 vanagon Carat.
>
> The mechanic that did the work charged an hour labor and replaced the
> Throttle body (claimed it read open when he checked it).

--
Neil n

Blog: tubaneil.blogspot.ca

'88 Westy http://tinyurl.com/c8rlw6p

'81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/

Vanagon VAG *Gas* inline-VR Engine Swap Group:

http://tinyurl.com/d7gd5ej