Could it be the ecm or coil

Went for a cruse last night, and right at a stop light she died.Push it off to the side,got fuel,check spark nothing waited a few seconds took at look around to see what is a miss.Tried again we have spark Huston:D. Every thing is like new.So could the ing box witch is a factory unit got a tad too hot or could it be my blaster 2 coil got hot.Any thoughts.