Could be. My tuner just turned off the P0300 code. If there's a legit misfire, there will be a cylinder associated with it with its own code.
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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
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