98 Acura TL. 130k or so. Friend says several weeks ago, the car would take longer than usual to start. The battery was load tested and checked out fine but my friend was told that the alternator's output was a bit on the high side. Nevertheless, the starting problem has not reappeared since. Fast forward to tonight. When she was driving the car tonight, the car stalled. It didn't display any usual problems prior to stalling. After stalling, it restarted just fine. The car has been running fine since. From my basic knowledge, I understand that a car needs to have fuel and spark to stay running. So, I assume that the problem is either fuel or ignition-related. Where should I start the diagnostic process? Thanks!