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Subject:Re: High idle - throttle position switch
From:Shawn Luft
Date:Fri, 5 Aug 2011 19:43:50 -0400

Hi Ken,The idle stabilizer is buzzing nicely and should be working ok.  It does, however, drop to approx 1500 rpm when I unplug the stabilizer??Also I opened the idle controller and there does not appear to be burnt elecrical components.  At this point I really suspect the throttle position switch.  I ordered one from your shop in case this is the culprit.  (if not i will keep it for spare)
Any other ideas for problems causing idle above 2000 rpm?
Thanks,Shawn

> Date: Fri, 5 Aug 2011 15:00:23 -0400
> From: kenwilfy@comcast.net
> To: shawnluft@HOTMAIL.COM
> CC: vanagon@GERRY.VANAGON.COM
> Subject: Re: High idle -  throttle position switch
> 
> Shawn, that is kind of normal for a switch to ohm out with a minute 
> resistance.  Try unplugging your idle stabilizer on the top of the 
> engine while it is running and see if this lets your idle go down to 
> where it should be.  It could be the idle stabilizer itself or the 
> control unit (the control units are the most common source of the 
> problem in my experience).  You can clean the idle stabilizer out with 
> some brake cleaner and some times this will clear the problem up.  Let 
> me know if I can help you further.
> 
> On 8/5/2011 12:54 PM, Shawn Luft wrote:
> > Hi,
> > I am trying to troubleshoot a high idle around 2000 rpms on my Van.
> > The digital ohmmeter reads 1 or 2 ohms in open + closed position when I connect a  throttle position switch.I read somewhere that it should be at zero ohms.  Is 1 ohm too much?  Does this mean the TPS is bad and should be replaced?
> > Thanks,Shawn1986 Vanagon 2.1L
> >
> >
> 
> -- 
> Thanks,
> Ken Wilford
> John 3:16
> www.vanagain.com
> Phone: 856-327-4936
> Fax: 856-327-2242
>