My sister has a 99 Sable. 3.0L V6. Ran out of gas one day and a few days later it wouldn't start...however has started twice for the garage, then nothing. At first it was testing good fuel pump pressure but then started hesitating to start and measured 23-24 but then would quit starting and measured back up to 38. Fuel filter was replaced. The garage has tried 2 different crank sensors (hoping the first was just a bad one) and nothing. Also put on a new ignition coil pack. Nothing. The computer is throwing out NO codes to indicate a problem. Replaced the fuel pump as a final hope...it started...my sis drove it to work and again it wouldn't start. The mechanic's only solution for the moment is to send the computer off to be flashed which will take a month...but any suggestions please? Any help would be appreciated and thank you in advance!