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Old Sep 28th, 2007, 07:26 AM   #17
roland2003
MINI 2 Sponsor GT Tuning
 
Join Date: Jan 2004
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..Maybe when the flap was removed the vacuum pipe that operates was disconnected. If its not either connected or blanked off, the bypass valve doesnt see vacuum and therefore doesnt open properly. This can give symptoms like you describe.
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