can the fuel tank pressure sensor be installed without a new fuel pump? on 2001 Oldsmobile Alero

pep boys say i need a new fuel tank pressure sensor but have to buy the fuel pump too. The pressure sensor is sold separately for 35.00 so I dont know why I need a new fuel pump too?

Asked by for the 2001 Oldsmobile Alero
1 answer
Instructions in the manual say the fuel tank has to be removed to replace the sensor but the three wire sensor may be available separately from the dealer at a fraction of the cost of replacing the whole unit.