Hello, Im a newbie to the site, and a recent owner of a 2004 RS wagon. From time to time my check engine light will come on for a very short time then go off, the handling isnt affected at all or anything, no extra warning lights nothing. It just comes on for a secod or 2 then off it goes and may not see it for a day to weeks. Can anyone shed some light onto what this may be? i have tried using the search and from what i can tell my cruise control light doesnt come on at all with it. Any help appreciated, thank you