Subaru P0407 Exhaust Gas Recirculation Sensor B Circuit Low

Description OBD-II Trouble Code Description for P0407 Subaru Exhaust Gas Recirculation Sensor “B” Circuit Low What does this mean? OBD2 Code P0407 Subaru 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…

Subaru P0406 Exhaust Gas Recirculation Temperature Sensor Circuit High Input

Description OBD-II Trouble Code Description for P0406 Subaru Exhaust Gas Recirculation Sensor “A” Circuit High What does this mean? OBD2 Code P0406 Subaru 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…

Subaru P0405 Exhaust Gas Recirculation Position Sensor Circuit Low Voltage

Description OBD-II Trouble Code Description for P0405 Subaru Exhaust Gas Recirculation Sensor “A” Circuit Low What does this mean? OBD2 Code P0405 Subaru 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…

Subaru P0404 Exhaust Gas Recirculation Control Circuit Range/Performance

Description OBD-II Trouble Code Description for P0404 Subaru Exhaust Gas Recirculation Control Circuit Range/Performance What does this mean? OBD2 Code P0404 Subaru 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…

Subaru P0403 Exhaust Gas Recirculation Control Circuit

Description OBD-II Trouble Code Description for P0403 Subaru Exhaust Gas Recirculation Control Circuit What does this mean? OBD2 Code P0403 Subaru 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…

Subaru P0402 Exhaust Gas Recirculation Flow Excessive Detected

Description OBD-II Trouble Code Description for P0402 Subaru Exhaust Gas Recirculation Flow Excessive Detected What does this mean? OBD2 Code P0402 Subaru 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…

Subaru P0401 Exhaust Gas Recirculation Flow Insufficient Detected

Description OBD-II Trouble Code Description for P0401 Subaru Exhaust Gas Recirculation Flow Insufficient Detected What does this mean? OBD2 Code P0401 Subaru 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…

Subaru P0400 Exhaust Gas Recirculation Flow

Description OBD-II Trouble Code Description for P0400 Subaru Exhaust Gas Recirculation Flow What does this mean? OBD2 Code P0400 Subaru 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,…

Subaru P0394 Camshaft Position Sensor B Circuit Intermittent Bank 2

Description OBD-II Trouble Code Description for P0394 Subaru Camshaft Position Sensor “B” Circuit Intermittent What does this mean? OBD2 Code P0394 Subaru 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…

Subaru P0393 Camshaft Position Sensor B Circuit High Bank 2

Description OBD-II Trouble Code Description for P0393 Subaru Camshaft Position Sensor “B” Circuit High What does this mean? OBD2 Code P0393 Subaru 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…