I would check the throttle switch for reliable operation at idle
position. You might want to run a wire and LED up to the driver's area
so you see that it works 100% of the time as they can get slightly
flaky. If you have a Digitool available it has an LED for this switch.

Mark

George Goff wrote:
>
> I thought I had seen about every kind of weirdness which a Vanagon can
> exhibit, but I am open to any and all suggestions regarding this most recent
> bout of perverse running.  At times, my '90 Syncro idles at about 2K.  The
> strange thing is that when it is idling high, if I hold it with the brake and
> release the clutch slightly, I can drag the engine speed down to 1K and it
> will hold that speed rock solid until the throttle is blipped.  As the engine
> has been gone over quite a bit, this one has me stumped.  Hopefully someone
> will have had the same symptoms and he can save me untold hours of chasing my
> own tail.
>
> Thanks, one and all.
>
> George