Exhaust Gas Recirculation Sensor Circuit A Low
P0405 OBD-II Trouble Code:
This is the general code that explains the exhaust gas recirculation (EGR) with engine performance below the specified range detected by the Engine Control Module (ECM).
Possible Causes:
- Faulty EGR valve
- Poor wiring
- Weak connections
- EGR sensor shorted to ground
Possible Symptoms:
- Check engine light turns on
- Stalling of engine
- Knocking of engine
- Weak acceleration
Possible Solutions:
- Change the EGR sensor
- Change EGR valve
- Change the wiring
- Change the connections