Date: Fri, 3 Jan 2014 08:12:12 -0600
Reply-To: JRodgers <jrodgers113@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: JRodgers <jrodgers113@GMAIL.COM>
Subject: Re: 88 GL - Idle Stabilizer System - Was Distributor Woes
In-Reply-To: <BAY404-EAS273820A2184720492BCE59DA0CA0@phx.gbl>
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Dennis, thanks. Big help.
John
On 1/3/2014 7:52 AM, Dennis Haynes wrote:
> In addition, the engine idle at 800-900 rpm with the valve disconnected is a
> bit too high. Read the Bentley and note the procedure for setting base idle
> speed. There is a current setting for the valve. The goal is for the valve
> to always provide "some" adjustment, (boost) for the idle speed. With the
> valve disconnected set for ~700 rpm and the valve should then bring it up as
> needed. For some controllers you will need to cycle the ignition to after
> reconnecting the valve.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Dennis Haynes
> Sent: Friday, January 3, 2014 8:47 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: 88 GL - Idle Stabilizer System - Was Distributor Woes
>
> Most likely you have a bad isle speed control unit. I have also see a bad
> valve cuase this behavior. Make sure the input for the power steering or the
> AC is not being triggered and a bad connection for the temp 2 sensor can
> also tell the ECU and idle control (shared input) that the engine is very
> cold causing a fast idle. Since you have two vans try swapping the
> controllers to confirm.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> JRodgers
> Sent: Friday, January 3, 2014 8:28 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: 88 GL - Idle Stabilizer System - Was Distributor Woes
>
> After a lot of monkeying around, I finally got Ol' Red to run properly - but
> not exactly by the book. If I leave the idle stabilizer valve (which hums as
> it should) disconnected, the engine starts and after a warmup - idles
> delightfully around 800/900 rpm.
>
> When I do a cold start with the ISV connected - the engine over speeds.
> Not good right from a cold start. Should come up to 1200-1500 and then drop
> back as it warms. But it goes well above that. I won't operate under those
> conditions so just keep it disconnected.
>
> Anyone with any ideas as to how to adjust this out to get it to function
> properly with no runaway speed on start up?
>
> Thanks,
>
> John
>
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