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      10-08-2010, 12:10 AM   #3
jaybird124
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Drives: 2017 M3 ZCP
Join Date: Nov 2005
Location: Florida

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I'm going to take a shot in the dark that it's supposed to stay open. The butterfly was installed on your car primarily to allow the DSC to function (also as a failsafe, I think).
Remember the valvetronic controls your throttle on that car. I would imagine it stays open to reduce pumping losses (which is one of the original premises of Valvetronic).

That's my guess...
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'17 M3 Imola Red/Carbonstructure Cloth, Competition, Lighting, 6MT

Retired: '93 325i |'99 Jeep Wrangler Sport |'06 330i Sport |'08 335i Sport |'08 328i Sport |'09 335d Sport