It's either this or you have a cut wire.
fuel tank pressure sensor is for the evaporative emissions controls, not the fuel level. fuel level is read by the fuel level sender which is attached to the fuel pump unit iirc. its a resistance based sender. to check its operation you need a DVOM and to pull it from the tank. hook the meter to the correct wires (look them up in the fsm) and move the arm back and forth. the resistance should change as the angle of the arm changes. if it does not or is erratic in how it changes you need a new fuel level sender. the part may also be called a fuel gauge sender.It's either this or you have a cut wire.
No need to drop the tank. Maybe you meant "pull the fuel pump assembly" :dunno: All that is removed from the back seat. No need to get under the car or mess with the tank itself.Thanks you, Im going to pull out the fuel tank and check when it stops raining.