went to local car show drove car about 5miles set all day started it up after show it died right away and restarted it ran rough wrench light came on I shut it down restarted it ran ok a couple mins ran ok and than check engine came on got a couple miles ran rough wrench light came on shut it down waited a few mins came on home got almost home ran rough finally got it in garage check engine still on any ideas only mod's I have done is airaid cold air intake change out and oil separator , going to try to get it into dealer tomorrow should I take the oil separator off