I have a 91 Integra LS. I was driving to Sacramento in a hurry and I was driving my car pretty hard that day with the ac on. Then later that evening I was driving back going the speed limit and all of the sudden my car would jerk for a second like the engine was shutting off and then turn back on. I also noticed that the tach needle was bouncing from 3k to 6k and then to 0 with the engine cutting out. Finally the engine stalled so I pulled over and sat there for a while to check it out. I started the engine and it started fine but then the problem comes back after a few miles. I had some parts replaced recently such as the ignition coil, main relay, distributor gasket. I had the major service done at 90k. including new clutch and flywheel, timing belt, water pump. It has 100k now. I don't know what to do.