Land Rover DTC P0171 – Oxygen Sensor System Too Lean Fault Bank A
DTC P0171 meaning on Land Rover
The DTC P0171 fault code on a Land Rover indicates that the oxygen sensor system in Bank A is detecting a lean air-fuel mixture condition.
Land Rover DTC P0171 symptoms
Common symptoms associated with DTC P0171 on a Land Rover may include:
- Check Engine Light illuminated
- Decreased fuel efficiency
- Rough idling or stalling
- Hesitation or lack of power during acceleration
Land Rover DTC P0171 causes
The potential causes of DTC P0171 on a Land Rover can include:
- Vacuum leaks in the intake system
- Faulty oxygen sensor
- Dirty or clogged fuel injectors
- Fuel delivery issues
- Mass airflow sensor problems
Land Rover DTC P0171 seriousness
While DTC P0171 may not cause immediate drivability issues, it can lead to long-term engine damage if left unresolved. It is important to address this fault code promptly to prevent further complications.
How to diagnose DTC P0171 on Land Rover
To diagnose DTC P0171 on a Land Rover, you can perform the following steps:
- Use an OBD-II scanner to retrieve the fault code and freeze frame data
- Inspect the intake system for vacuum leaks
- Check the oxygen sensor readings and functionality
- Clean or replace fuel injectors if necessary
- Test the mass airflow sensor for proper operation
How to fix DTC P0171 on Land Rover
To fix DTC P0171 on a Land Rover, you can try the following solutions:
- Repair any vacuum leaks in the intake system
- Replace the faulty oxygen sensor
- Clean or replace clogged fuel injectors
- Address any fuel delivery issues
- Test and replace the mass airflow sensor if needed
How to erase DTC P0171 on Land Rover
To erase DTC P0171 on a Land Rover, you can use an OBD-II scanner to clear the fault code after the underlying issue has been resolved. Once the fault code is cleared, the Check Engine Light should turn off. Make sure the repair has been successful before clearing the code.
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