Ford P0193 OBD-II Trouble Code Definition: P0193 Fuel Rail Pressure Sensor Circuit High Input P0193 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0193 Fuel Rail Pressure Sensor Circuit High What does the code mean? OBD-ii Code P0193 definition: The Fuel Rail Pressure (FRP) sensor is a diaphragm strain gauge device in which resistance changes with pressure. […]