Ford P0471 OBD-II Trouble Code Definition: P0471 Exhaust Pressure Sensor Range/Performance P0471 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0471 Exhaust Pressure Sensor Range/Performance What does the code mean? OBD-ii Code P0471 definition: The exhaust back pressure (EBP) sensor is a variable capacitance sensor that, when supplied with a 5-volt reference signal from the Powertrain Control […]