Qurstion about Idle Stab. system

[amalventano1@comcast.net (Allyn)]

Cory,
    It is an ecu controlled valve that bypasses the throttle. This allows the ecu to change the
idle. They 'hum' due to the control method. The ecu sends a constant frequency/variable dwell
voltage to the valve, thus making it 'appear' at a fixed throttled position (as far as the engine is
concerned, since its speed isnt going to respond to a ~80 hz pulsing of intake air).
    From an 8v to 16v difference standpoint, this valve handles the function of the cold start valve
as well as raising idle for a/c compressor load and such.
Allyn

----- Original Message -----
From: "Cory Langford" <cory.langford@icbc.com>
To: "scirocco" <scirocco-l@scirocco.org>
Sent: Wednesday, February 27, 2002 10:53 AM
Subject: Qurstion about Idle Stab. system


>
> Okay, I will admit it. I have never actually had the opportunity to own
> a 16V.
>
> So for the uninformed like me.  Can someone give a run down on what the
> Idle Stabilization valve does.
>
> Reason I am interested it there seems to be one in the Digifant-1
> (corrodo system) and I need to know what to do with it on the turbo
> project :)
>
>
> --
> Cory Langford
> '86 Oettinger turbo project
> '82 beater (winter driver)
>
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