P0300 is a pain in the ***. Anything can trigger it. I had a crappy Spec clutch that rattled a lot, and that was enough to trick the ecu into thinking it was a misfire.
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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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