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Date:         Sun, 22 Jun 2014 08:50:02 -0400
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: Idle control issue
Comments: To: Richard Golen <rgolen@HOTMAIL.COM>
In-Reply-To:  <BLU404-EAS331FED4768EB76C700C4AA3D21C0@phx.gbl>
Content-Type: text/plain; charset="us-ascii"

The idle stabilizer itself is not changing the engine operation above idle. The valve simply bypasses the throttle. Most likely the idle control unit is defective. There is the possibility that something is triggering the idle controller to increase idle speed. A bad reading from the temp 2 sensor or one of the inputs for power steering or the AC compressor. A bad ground can also cause a problem. I would look at the temp 2 sensor and wiring as that can also change engine operation including ignition timing and the O2 sensor not going into closed loop operation.

Dennis

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Richard Golen Sent: Sunday, June 22, 2014 8:16 AM To: vanagon@GERRY.VANAGON.COM; vanagon@GERRY.VANAGON.COM Subject: Idle control issue

Hi,

Yesterday, while camping at Lime Rock Park - 3 hrs from home, I started my Westy and the idle jumped to 1500...then to 2000 and finally stayed at 2700 rpm. Checked the throttle to see if it was hanging up. Not the case.

I then noticed one of the wires from the power steering switch came adrift and grounded out. Replaced the wire, restarted, same problem. Disconnected the idle stabilizer valve and idle went back to normal. Reconnected...rpms back up to 2700. Re-disconnected it and drove home.

Interestingly, on the drive home, fuel mileage was up by 3 mpg...in fact the engine seemed to run better, stronger and quieter.

Came home and cleaned the idle valve w/carb cleaner. Idled normally for 30 seconds and back up to 2700. So I disconnected it once more.

So, what could the problem be? In the alternative, where the engine seems to be running much better, should I just leave the idle stabilizer valve disconnected?

Thanks!

Ric

Sent from my iPad


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