Okay so I need opinions. I have a 98 SL2 that shuts off while I'm driving or parked. Started a week ago. I was driving and it shut off but it turned over and ran fine. When I parked the car and started it up it started fine then as I drove it the car shut off and took a little longer to start back up but once I got it started it ran fine. What is the possible cause?

 

Does the temperature of the car have anything to do with how often the car shuts off ??