Ford P0325 OBD-II Trouble Code Definition: P0325 Sensor Circuit Malfunction P0325 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0325 Knock Sensor 1 Circuit What does the code mean? OBD-ii Code P0325 definition: A knock sensor tells the engine computer when one or more of your engine’s cylinders are “knocking”, that is, exploding the air/fuel mixture in […]