An update on my previous post. I have changed all 6 coil packs from generics to name brand ( Delphi), 6 new spark plugs, upper and lower intake gaskets, replaced fuel injector seals/screens, had my ECU checked by a rebuilder who said it tested fine, checked all grounds. Checked for vacuum leaks with acetylene. It starts and runs perfectly and anywhere from 3 minutes up to 30 minutes it will stall out by flooding. It will set codes P0351,P0352,P0354,P0356 indicating misfires on cylinders 1,2,4,and 6. Car will restart and run fine. You can smell gasoline when it stalls. The car will run for long periods of time perfectly and then spontaneously shut down. Car has 82k lady driven miles and is otherwise in excellent shape. Originally from North Carolina. Any help would be greatly appreciated. We're running out of ideas. Thanks, Phil

 

Fuel pressure regulator ?

 

Crank sensor?

 

Crankshaft position sensor was replaced. thanks, Phil