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Old 12-02-2012, 09:55 PM   #589
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Join Date: Jan 2004
Chapter/Region: South East
Location: Following the green weenie
2002 PSM WRX 16G-XT
Dorothy from OZ, the XT


Originally Posted by danisfake View Post
I thought post turbo leaks (exhaust leaks) were not detrimental to the car and pre turbo leaks would cause maf issues which are bad for the car since metered air is not correctly being measured.
I'm talking about a boost leak between the compressor outlet and the throttle body. If you have a bad enough boost leak the car won't run at all under any real load. Pre turbo (compressor housing) will cause MAF (lean) issues.

A pre turbo exhaust leak will just keep you from hitting target boost, and make your car smell like exhaust.
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