Category: FORD

Description OBD-II Trouble Code Description for P0406 Ford Exhaust Gas Recirculation Sensor “A” Circuit High What does this mean? OBD2 Code P0406 Ford definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one…

Description OBD-II Trouble Code Description for P0407 Ford Exhaust Gas Recirculation Sensor “B” Circuit Low What does this mean? OBD2 Code P0407 Ford definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one…

Description OBD-II Trouble Code Description for P0405 Ford Exhaust Gas Recirculation Sensor “A” Circuit Low What does this mean? OBD2 Code P0405 Ford definition: There are different designs of EGR (Exhaust Gas Recirculation) systems, but they all operate in a similar way. The EGR valve is a PCM (Powertrain Control Module) controlled valve that allows…

Description OBD-II Trouble Code Description for P0404 Ford Exhaust Gas Recirculation Control Circuit Range/Performance What does this mean? OBD2 Code P0404 Ford definition: The EGR (Exhaust Gas Recirculation) system’s purpose is to redirect exhaust gas back into the cylinders. Since exhaust gas is inert, it displaces oxygen and fuel, thereby lowering cylinder temps, which, in…

Description OBD-II Trouble Code Description for P0403 Ford Exhaust Gas Recirculation Control Circuit What does this mean? OBD2 Code P0403 Ford definition: The Exhaust Gas Recirculation (EGR) system is controlled by a vacuum solenoid. The solenoid is supplied ignition voltage. The Powertrain Control Module (PCM) controls the vacuum solenoid by grounding the control circuit(ground) or…

Description OBD-II Trouble Code Description for P0401 Ford Exhaust Gas Recirculation Flow Insufficient Detected What does this mean? OBD2 Code P0401 Ford definition: EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three…

Description OBD-II Trouble Code Description for P0402 Ford Exhaust Gas Recirculation Flow Excessive Detected What does this mean? OBD2 Code P0402 Ford definition: EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three…

Description OBD-II Trouble Code Description for P0400 Ford Exhaust Gas Recirculation Flow What does this mean? OBD2 Code P0400 Ford definition: The exhaust gas recirculation (EGR) valve is vacuum controlled valve that regulates the amount of exhaust gases that re-enter the cylinders. The powertrain control module (PCM) determines how much based on engine load, temp,…

Description OBD-II Trouble Code Description for P0394 Ford Camshaft Position Sensor “B” Circuit Intermittent What does this mean? OBD2 Code P0394 Ford definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of…

Description OBD-II Trouble Code Description for P0393 Ford Camshaft Position Sensor “B” Circuit High What does this mean? OBD2 Code P0393 Ford definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of…