Land Rover DTC P1157 – Oxygen Sensor Engine Lean *Codes* B D
DTC P1157 meaning on Land Rover
The DTC P1157 on a Land Rover indicates an issue with the oxygen sensor in bank 2, sensor 1, reporting a lean air-fuel mixture condition.
Land Rover DTC P1157 symptoms
Common symptoms associated with DTC P1157 on a Land Rover may include:
- Check Engine Light illuminated
- Decreased fuel efficiency
- Engine running rough or misfiring
- Reduced engine performance
Land Rover DTC P1157 causes
The potential causes of DTC P1157 on a Land Rover can include:
- Faulty oxygen sensor
- Vacuum leaks in the intake system
- Fuel delivery issues
- Exhaust system leaks
Land Rover DTC P1157 seriousness
While DTC P1157 may not cause immediate drivability issues, it can lead to decreased fuel efficiency and potential long-term engine damage if left unresolved.
How to diagnose DTC P1157 on Land Rover
To diagnose DTC P1157 on a Land Rover, a mechanic may perform the following steps:
- Use a scan tool to retrieve the fault code and freeze frame data
- Inspect the oxygen sensor for proper operation
- Check for vacuum leaks in the intake system
- Inspect the exhaust system for leaks
How to fix DTC P1157 on Land Rover
To fix DTC P1157 on a Land Rover, the following steps may be taken:
- Replace the faulty oxygen sensor
- Repair any vacuum leaks in the intake system
- Address any fuel delivery issues
- Fix any exhaust system leaks
How to erase DTC P1157 on Land Rover
To erase DTC P1157 on a Land Rover, the fault code can be cleared using a scan tool. After the repair has been completed, the code can be cleared to reset the Check Engine Light.
Recommended tools for Land Rover diagnostics
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