Ford P0443 OBD-II Trouble Code Definition: P0443 EVAP Canister Purge Valve Circuit Malfunction P0443 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0443 Evaporative Emission System Purge Control Valve Circuit What does the code mean? OBD-ii Code P0443 definition: The Evaporative Emissions System (EVAP) allows fumes from the gas tank to enter the engine to be burned, […]