how do i locate and repair a fuel tank pressure sensor? on 2002 Chevrolet Tahoe

how do i locate and repair a ftp sensor on my vehicle and would this problem cause my vehicle to drink gas? this is causing my car to fail inspection with a code of p0453

Asked by for the 2002 Chevrolet Tahoe
The fuel tank pressure sensor should be right on top of the fuel tank. You will probably have to drop the tank to get to it. This should be it