Naturally aspirated Cobalts from 07-10 were the only ones available as partial zero-emissions vehicles. Also, XFE doesn't necessarily mean that the car is PZEV. JSATX's car was an XFE trim and I don't think he had to swap pumps.
For reference, if you are looking at the top of the fuel tank you can determine if the car was PZEV by the number of hoses coming out of the fuel pump lid and by how the fuel pump wires are connected:
For reference, if you are looking at the top of the fuel tank you can determine if the car was PZEV by the number of hoses coming out of the fuel pump lid and by how the fuel pump wires are connected:
- Standard fuel pump
- 2 hoses (supply and return)
- the wires are removable (there is a connector on the top)
- PZEV
- 1 hose (supply)
- the wires are permanently attached to the top