I have a 2001 volvo s 80 almost ran out of gas it started sputtering and hesitating the gauge was in the red .i barely made it to the station .. i got gas and it hasnt stopped doing what it was doing doing also the check engine light has come on and the exhaust has an almost sulfery smell to it..... the car wont idle properly its idling rough..... wth happened? clogged gas filter? even after fueling it is still acting like its missing or out of tune.... could it be coinsidence that it almost ran out of gas ??