That light on your EFI could be telling you that you've lost your "ideal" fuel/air ratio that the CLEFI is trying to maintain, it'll run rough and then go back to normal. What octane of fuel have you been using? Clean your fuel system. Run a couple caps of seaf-foam through each tank of gas.....once your fuel system is cleaned and it potentially solves your issue, put like a 30 micron fuel filter on.....