1993 Buick Regal, While Driving Will Cut Out & Shut Off, Any Ideas

The car is a 1993 Buick Regal, 3.1 motor multi port V/6. It will start and run fine while it is sitting, it will run fine while you are driving. After about one and a half to two miles of driving it will hesitate or cut out and it will shut off. Try to start it an it will not firer just turns over, but every thing else will work. Wait 3 or 4 minutes and it will start.
New parts = plugs & wires = alternator = idle air control = crankshaft sensor = module that is behind the three coils. Was hooked on to the big test machine and showed no codes or problems with any systems, and is showing no codes now.
If you guys could fined anything out I would really appreciate it.

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