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beepbeep beepbeep is offline
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Join Date: Jun 2001
Location: Sweden
Posts: 5,564
Could you post a picture of check valve? BOV plumbing is very complicated on these cars an mine also had some sort of check valve whose function I never really understood. Easiest way would be just replacing it with other check valve or removing it. Maybe it's membrane gets stiff when subjected to heat? Also, fully open BOV during full throttle will force turbo into overspin, as it will recirculate the air.

Is it the one on lower left?

Thank you for your time,
Old 10-05-2008, 01:37 PM
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