Date: Sat, 14 Apr 2007 17:16:24 -0400
Reply-To: Ben <huotb@VIDEOTRON.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Ben <huotb@VIDEOTRON.CA>
Subject: Re: AC ON / High idle problem
In-Reply-To: <c62.e6a7c49.3352847f@aol.com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Franc, what does ICU mean? Idle Control Unit, so same as ISCU??
Cheers, Ben
RAlanen@aol.com wrote:
> In a message dated 13/04/2007 4:12:27 P.M. Eastern Standard Time,
> LISTSERV@GERRY.VANAGON.COM writes:
>
> As i'm stuck in the /%&$%?/!$?&% snow, i could not make it to
> Everybus, so
> i'm working...
>
> Rarely that i ask for help but maybe now someone had that problem
> and can
> give me an hint, i'm NO AC guru at all.
>
> The van is an 87 with AC
>
> Problem: customer drive the van with AC ON on freeway, get out of
> freeway,
> let go of the gas pedal, Idle stays at 2000 RPM, close AC, idle is
> fine, put
> back AC, engine rev up to 2000.
>
> So, on Digfan/late Van, i can not trace what control the higher
> idle when AC
> is ON, i know that the ISCU (Idle Stabbilizer Control Unit)
> control the
> Power stering higher idle but not sure about AC, anyway, i thought
> i ask
> before i get into that problem and loose precious time. I didn't
> take a real
> look at the schema but will later.
>
>
>
> Benny Boy, I see no one has responded to your question
> yet. I have worked with this problem before. On top of the
> compressor is a wire, yellow/black I think, not sure, but anyways that
> wire goes to the ICU and it gives info that the compressor is
> activated and the ICU is supposed to adjust the idle accordingly. I
> would check to make sure that wire is connected and working. If
> that's not the problem then it's the ICU that's at fault.
>
> Cheers,
>
> Frank Condelli
> Almonte, Ontario, Canada
> '87 Westy, '90 Carat, '87 Wolfsburg (Forsale) & Lionel Trains
> (Collection for sale <http://members.aol.com/Fkc43/trainsal.htm>)
> Frank Condelli & Associates
> <http://members.aol.com/Fkc43/busindex.html> - Vanagon/Vanagon
> Westfalia Service in the Ottawa Valley
> Vanagon Stainless Steel Exhaust Systems
> <http://members.aol.com/Fkc43/stebro.htm>
> BusFusion <http://members.aol.com/BusFusion/bfhome.htm> a VW Camper
> camping event, Almonte, ON, June 07 ~ 10, 2007
>
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