The car shuts off while driving. Happens more between 4th and 5th gear, but has happen at a slower speed. The steering column locks and the car can't steer to pull off road. After sitting a while, it will start, while pumping gas pedal. I have had experience with fuel pump & fuel injector failure for GMC trucks, and they will not start once the truck dies. So I am unsure if it is really fuel pump or fuel injector. I am unsure if it is a electrical or sensor problem pertaining to the fuel supply. The Gearbox, engine, abs errors all come on.