Ok so I go this random problem out of nowhere. Started my car the other day to have it stall 7 times then have a very rough idle where it would rev up and then almost stall. It would keep doing this til the engine was warm then runs great. Threw a p0300-engine misfire. Anyone else have this problem? I've read other posts but no one has a firm answer on what it might be.

 

clean maf, clean throttle body, change spark plugs