Ford P0440 OBD-II Trouble Code Definition: P0440 EVAP Canister Purge Regulator Valve P0440 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0440 Evaporative Emission System What does the code mean? OBD-ii Code P0440 definition: This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including […]