What is the meaning of OBD-II p0453 code , and what are the possible causes and how to solve this issue?

OBD-II code P0453 is a generic code that indicates a problem with the fuel tank pressure sensor circuit. The code definition is "Fuel Tank Pressure Sensor Circuit High Input". The possible causes for this code to be triggered include: A faulty fuel tank pressure sensor A problem with the wiring or connector of the fuel tank pressure sensor A vacuum leak in the fuel tank or evaporative emission (EVAP) system A clogged fuel tank vent valve A problem with the PCM (Powertrain Control Module) or the wiring that connects it to the fuel tank pressure sensor To solve this issue, a mechanic would typically perform a visual inspection of the wiring and connections in the fuel tank pressure sensor circuit, and if no problems are found, they may replace the fuel tank pressure sensor. In some cases, further diagnosis may be required to isolate the cause of the code, such as a smoke test of the EVAP system to check for vacuum leaks.