Fuel Tank Pressure Sensor: Testing and Inspection

Inspection

1) Remove fuel tank from vehicle. Remove pressure sensor.
2) Check sensor air vent hole and pressure passage for clog. Clean if clogged.
3) Check sensor O-ring for damage and deterioration. Replace as necessary.
4) Check sensor for operation referring to "Tank pressure sensor inspection" in DTC P0450 Flow Chart.
Testing and Inspection
If found defective, replace.