pacifier

Hi I have a 2002 Saab Areo 9-3 - the problem is that i drive her and then she cuts out now engine management light is on- she would not start again so left her on the side of the road to return in 2hrs when she start and could drive it home- any ideas of the what could be causing the problem - the help would be appreciated as I am based in South Africa(Cape Town) and don't get much help here locally