First noticed the problem on Saturday. The engine shut off at a stop sign, but restarted right away. Problem recurred Tuesday night, but would not restart for 30 minutes
Engine shuts off while driving, will restart on 1995 Acura Legend
Agree with DaveJHM.
I would suspect some kind of heat sensative electrical concern - as in with a fuel pump or ignition control component. Any way you look at it, testing will need to be performed at the time a failure occurs, to see what is missing - spark, fuel, air... Good luck.