Other Fuel System Hoses Lines/piping, And Fittings problems of the 2006 Chevrolet Malibu

Fuel pump problem, emissions vapor leak, gas cap, ignition switch, and gas tank sensor problem. My car is a 2006 chevy Malibu v6. My car has all of these problems with it and I have seen many others with the same problems for this car . I believe there should be something done about it . It is showing up those codes. It also has electrical problems with the power mirrors and windows and trunk . Stationary.

I filled my tank up with gas and after driving a few feet the gauge went to empty. I pulled over and shut the car off and restarted it. The gauge went back up to full, but after driving less than a mile it went to empty again. I stopped the car after reaching my destination and let it sit for a few hours. I then rechecked that the gas cap was on tightly. It seemed fine and the gauge was remaining at full. After a couple of days of driving the gauge is still reading completely full and the option that tells me how many miles I have left remains at 295. At this point, I do not know how much gas is in the vehicle. I am forced to stop and fill the tank every few days so that I do not run out of gas.