2000 Disco series II with 92,000. It was running a little rough so I decided to try the seafoam treatment. All was fine but afterwards the "service engine soon" light came on. The light was never on before. I am sure that it is due to the seafoam. The engine bogged a little as I was adding it and probably did misfire a few times. Can this code be reset by me or will it eventually go off. Or can autozone or someone reset it for me? Thanks in advance.