P0174 – Land Rover DTC

Land Rover DTC P0174 – Oxygen Sensor System Too Lean Fault Bank B

DTC P0174 meaning on Land Rover

1. DTC P0174 indicates that the oxygen sensor system in Bank B is detecting a lean fuel mixture condition.

Land Rover DTC P0174 symptoms

1. Check Engine Light (CEL) illuminated on the dashboard.
2. Decreased fuel efficiency.
3. Engine may run rough or hesitate during acceleration.

Land Rover DTC P0174 causes

1. Vacuum leaks in the intake system.
2. Faulty oxygen sensor in Bank B.
3. Issues with the fuel delivery system.
4. Malfunctioning Mass Airflow Sensor (MAF).

Land Rover DTC P0174 seriousness

1. If left unresolved, it can lead to engine damage and increased emissions.
2. Continued driving with this fault can potentially cause other components to fail.

How to diagnose DTC P0174 on Land Rover

1. Use an OBD-II scanner to retrieve the specific fault code and freeze frame data.
2. Inspect the intake system for any vacuum leaks.
3. Check the oxygen sensor in Bank B for proper operation.
4. Test the Mass Airflow Sensor (MAF) for correct readings.

How to fix DTC P0174 on Land Rover

1. Repair any vacuum leaks in the intake system.
2. Replace the faulty oxygen sensor in Bank B.
3. Clean or replace the Mass Airflow Sensor (MAF) if necessary.
4. Ensure the fuel delivery system is functioning correctly.

How to erase DTC P0174 on Land Rover

1. After fixing the underlying issue, use an OBD-II scanner to clear the fault code.
2. Drive the vehicle to allow the system to relearn and monitor the new sensor data.