DTC P0451 (TNKP_F): EVAP Emission Control System Pressure Sensor Range/Performance

Check for disconnected, leaking or plugged vacuum hoses and pipes between fuel tank and fuel tank pressure sensor. Check for disconnected, leaking or plugged air ventilation hoses and pipes between fuel tank and fuel filler pipe. Repair or replace as necessary. If all components are okay, replace fuel tank pressure sensor.