Update.....
Thanks to someone here we changed the crankshaft sensor (there was a small crack in it) and the car ran better than ever. I let it sit about half an hour and it did the same thing, would turn over, start, but the minute you put your foot on the gas pedal, or put the car in gear it dies again. It seems each thing that is changed improves the running of the car, but it still does not want to stay running after it gets good and warm (it is not overheating). Any ideas where to look next?
Thanks