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Date:         Sun, 17 May 2020 05:51:12 -0400
Reply-To:     David Beierl <dbeierl@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@GMAIL.COM>
Subject:      Re: Idle issues
Comments: To: Steven Mills <lefthanddrive123@gmail.com>
In-Reply-To:  <52C43031-9FAE-45D3-B388-773943221BCE@gmail.com>
Content-Type: text/plain; charset="UTF-8"

On Sun, May 17, 2020 at 12:21 AM Steven Mills <lefthanddrive123@gmail.com>
wrote:


> Idle control valve does not vibrate/hum but will open/close on bench test.




 So -- valve is good but system is not operating.




> So, my question centers on whether or not the ECU can partially function
> but still be dysfunctional as to the idle. Any thoughts/ideas would be
> appreciated.
>


The ECU does not control the operation of the ICU.  If the valve does not
hum at key-on (or when the fuel pump runs in late models) then either the
ICU or its wiring is bad (since the valve is known good).


Yrs,
d


>
> Sent from my iPad
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