Robert,

The TPS performs two functions (at least).

At full throttle, it provides maximum fuel enrichment for all the
obvious reasons.  At the fully closed position, it shuts down the fuel
supply when the engine is running over 1500rpm or so.

A misadjusted (or missing) TPS will cause the engine to surge on
deceleration, especially around that 1500 rpm range.

I wouldn't get peeved at Roger - sounds like he has having some fun at
your expense.  Don't know about you, but I have a pretty good sized
expense account for other folks' humor.

Karl Wolz

> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
Behalf Of
> Robert Fisher
> Sent: Tuesday, January 24, 2006 5:52 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Questions regarding throttle valve switch
>
> The throttle body, switch and all is sitting on the desk in front of
me. I
> already said the adjustments were fine, it is working properly and I
plan on
> soldering the wires back on and reinstalling it here in a shake. I
just
> wanted to know what effect not having the switch functioning had on my
> engine and whether it might have anything to do with the two issues I
asked
> about.
> I don't get your tone, Roger. From what you post sometimes I figure
you're
> either pushing the envelope or riding the ragged edge of disaster, but
I'm
> not sure which. I ask about it 'cause I'm interested in how things
turned
> out.
>
> Cya,
> Robert
>
> ----- Original Message -----
> From: "Roger Sisler" <rogersisler2000@YAHOO.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Tuesday, January 24, 2006 3:04 PM
> Subject: Re: Questions regarding throttle valve switch
>
>
> > You can get that switch anywhere, but it costs about $50.Gotta
remove the
> > throttle though. The switch just pushes onto the throttle body in an
> > obvious way.Check to see if an adjustment can still provide for a
clicking
> > of the switch at idle and full throttle.If so, get out the soldering
> > iorn.And you have questions about my WBX,sheesh.