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Old 10-05-2018, 01:13 PM   #1954
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Drives: MK6 GTI DSG
Join Date: Mar 2016
Location: Richmond
Posts: 320
Since these cars are MAF based any leaks past the MAF will throw off fueling and really every calculation in the ECU so it is very important to make sure there are no air leaks.

Exhaust leaks can also throw off the O2 sensor readings and are secondary to air leaks as a potential issue.
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