On 5/23/06, David McCallum <dmccom@dimensional.com> wrote:
>
> I've just about had it with tapping the gas pedal to drop the idle to
> 900rpm.
> When I unplug the ISV, it drops right down. I've tried flushing it several
> times using carb cleaner, with no improvement. If anybody has a spare ISV
> that
> they're willing to part with at a reasonable price, please p-mail me.
> Thanks!

You're sure it's the valve inself and not the Idle Controller that runs it?
Those valves are pretty robust. The crazy little analog computer that
operates the valve, not so much. Supposedly the earlier versions of
the controller,
251 907 393B, are more prone to failure than the later 251 907 393D (the A
and C revisions, I believe, are the euro version).

-- 
John Bange
'90 Vanagon - "Geldsauger"