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      12-04-2012, 12:11 PM   #7
JamesM3M5
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Drives: E92 335i
Join Date: Sep 2011
Location: Northern VA

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Drive it hard. There may be carbon buildup inside one or more of the combustion chambers causing a poor idle. It can happen easily if you have excessive oil dumping into the intake ports (usually 5 is the worst) from the PCV system and/or a bad injector.
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E92 335i/6MT with stuff and things
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