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Old Aug 27, 2007 | 12:21 AM
  #11  
auditech79's Avatar
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Joined: Feb 2007
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From: Nor Cal
Default RE: Got a code

The EGR or combi valve won't really do anything to your gas mileage, nor will the vaccum line going to it.
Its not really a vaccum line, that would just throw a code, you want to find the lines that have engine vaccum, I would also clean the MAF, check the front O2 sensor with the VAG COM (the rear doesn't matter) and check your air filter.
 
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