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Old 01-26-2011, 12:24 AM   #5
Wrencher86
Scooby Newbie
 
Member#: 250463
Join Date: Jun 2010
Location: Evanston, Il
Vehicle:
2010 Impreza 2.5i
Silver

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Are you talking about the bolts that hold the unit on? If they are loosened un-metered air enters the engine and it can't compensate for it.
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