Idle position switch at throttle body not functioning when engine is hot
(I had this on my own personal van and it drove me nuts because the
switch would work when cold but then go out of adjustment when hot).

HTH.

On 6/16/2011 3:57 AM, Gilles H Turmel wrote:
> A friend of mine has an 86 Westy with a new 2.1 block rebored to 2.2.  When driving with engine at op temp RPM surges to 2200 RPM. We check to find vacuum leaks: no leaks found. Idle controller has been change for a used unit. At idle the engine is rough but not running rich.  Good power on higway.  Any ideas?
> Best regards.
> Gilles Turmel
>

--
Thanks,
Ken Wilford
John 3:16
www.vanagain.com
Phone: 856-327-4936
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