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
>
>------------------------------------------------------------------------
>
>No virus found in this incoming message.
>Checked by AVG Free Edition.
>Version: 7.5.446 / Virus Database: 269.4.0/760 - Release Date: 2007-04-13 20:04
>
>