I'm chasing the same thing and will let you know what I find.
The no response seems to be related to running when low on fuel,
but I have only seen it two or three times.

On Fri, 9 Aug 2002, s w wrote:

> having no luck in archive land this morning, so
> figured i'd bother the list for a little advice...so
> im waiting for traffic to clear at a stop light, and
> when i go to give the beast some gas, it just sits
> there, like im not pushing on the gas, just sitting
> there idleing. so i pumped the pedal a few times and
> it finally after a few seconds 3-4, started to act
> normal again...this has happened a few times recently
> and i need to figure out what is going on here. the
> van has been idleing a bit rough in the mornings too,
> like it wants to die, but does not....1.9L 85
> westfalia. any ideas of what i should be looking into
> to solve this problem appreciated...
>
> =====
> Scott Wilson
> 85 GL Westfalia
>
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