Ford P0453 OBD-II Trouble Code Definition: P0453 EVAP System Pressure Sensor/Switch High Input P0453 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0453 Evaporative Emission System Pressure Sensor/Switch High What does the code mean? OBD-ii Code P0453 definition: The EVAP (Evaporative Emissions) System allows fuel tank vapors to be purged into the engine and burnt rather than […]