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question about VVEL, throttlebody, and drive by wire...

Originally Posted by Modshack Yeah....BOV's or diverter valves typically need vacuum to trigger as you go off throttle. Potentially this could be handled electrnically I suppose. Some mention of Vacuum

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Old 07-27-2009, 04:44 PM   #12 (permalink)
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Quote:
Originally Posted by Modshack View Post
Yeah....BOV's or diverter valves typically need vacuum to trigger as you go off throttle. Potentially this could be handled electrnically I suppose. Some mention of Vacuum for brake boosters is in the article I read and controlled by the throttle plate

There is a vacuum tank somewhere, built into the intake manifold. It uses a one-way valve to maintain a supply of vacuum for the brakes. There typically is vacuum in the manifold only at idle as that's usually the only time the throttles close (unless the VDC system is cutting power to maintain traction). So, vacuum pressure should be maintained at a fairly constant level.

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Trav
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