where is the fuel tank pressure sensor located?

Hello,

The fuel tank pressure sensor is located on top of the fuel pump sending unit (see diagram).
There is an access panel in the trunk, you can use that to access the sending unit.
After removing the electrical connector to the pressure sensor you will be able to remove it.

Remember to disconnect the negative battery cable before starting the process.

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

I have attached diagrams for your reference.

Please let me know of any questions.

Thank you.