PO300 Random Multi Missfire Already changed OE spark plugs still getting same code but car runs smooth

4Cyl 2.0L Turbo

That's what I figured, there is likely a load of carbon built up on the intake valves. It's because the direct injection system. Gasoline normally cleans valves, but the direct injection does not spray on the valves, so they get VERY gummed up and choke the engine. Also, you may be having fuel delivery issues due to the high pressure fuel pump, but that is typically noted by additional fault codes. If the intake valve cleaning has never been done, or not within 60k miles, it should be done either way. Are you lacking power and getting poor fuel mileage? Any other fault codes?