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      12-14-2014, 09:36 PM   #3
litxus
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Drives: 09 E90 335i sedan
Join Date: Jan 2013
Location: Villa Park

iTrader: (1)

Could be many things, but start with spark plugs and coils. When tuned spark plugs and coils don't last too much (when was the last time you did plugs or coils?). If car is still running like crap when cold, but good when warm, then next are the injectors.
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