AutoCodes – Land Rover – P1171 Land Rover

P1171 Land Rover Code - LH Bank Lambda Control Adaption Over Time Too Large

Quick Answer

The Engine Control Module (ECM) has the ability to adapt the values it uses to control certain outputs. Common causes include Faulty Heated Oxygen Sensor, Heated Oxygen Sensor harness is open or shorted, Heated Oxygen Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1171 Land Rover indicates LH Bank Lambda Control Adaption Over Time Too Large.
Common causes: Common causes include Faulty Heated Oxygen Sensor, Heated Oxygen Sensor harness is open or shorted, Heated Oxygen Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 7,978

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1171 Land Rover Description

The Engine Control Module (ECM) has the ability to adapt the values it uses to control certain outputs. This capability ensures the Engine Management System (EMS) can meet emissions legislation and improve the refinement of the engine throughout its operating range.
The components which have adaptions associated with them are:The APP sensor,The HO2S,The MAF/IAT sensor,The CKP sensor and Electric throttle body.

OBDII Code P1171 Land Rover - LH Bank Lambda Control Adaption Over Time Too Large - AutoCodes.com — P1171 Land Rover Code - LH Bank Lambda Control Adaption Over Time Too Large

What does this mean?

What are the Possible Causes of the DTC P1171 Land Rover?

Faulty Heated Oxygen Sensor
Heated Oxygen Sensor harness is open or shorted
Heated Oxygen Sensor circuit poor electrical connection

How to Fix the DTC P1171 Land Rover?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1171 Land Rover code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1171 Land Rover code?

Need more information on how to fix the P1171 Land Rover code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1171 Land Rover code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1171 Land Rover Code

1. What are common symptoms of OBDII code P1171 on a Land Rover?

- Common symptoms include rough idling, poor acceleration, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What does the OBDII code P1171 LH Bank Lambda Control Adaption Over Time Too Large mean for a Land Rover?

- This code indicates that the engine control module has detected an issue with the air-fuel mixture on the left-hand bank of the engine over a period of time.

3. What are possible causes of OBDII code P1171 on a Land Rover?

- Possible causes include a faulty oxygen sensor, vacuum leaks, a dirty or clogged air filter, fuel system issues, or a malfunctioning mass airflow sensor.

4. How can I diagnose the OBDII code P1171 on my Land Rover?

- Diagnosing this code typically involves conducting a thorough inspection of the oxygen sensors, checking for vacuum leaks, inspecting the air filter, and testing the fuel system components.

5. What are some repair tips for fixing OBDII code P1171 on a Land Rover?

- Repair tips may include replacing the oxygen sensor, repairing any vacuum leaks, cleaning or replacing the air filter, addressing fuel system issues, and ensuring the mass airflow sensor is functioning correctly.

6. Can I continue driving my Land Rover with the P1171 code present?

- It is not recommended to continue driving with the P1171 code present, as it can lead to further engine problems and decreased performance. It is best to address the issue promptly.

7. How much does it typically cost to repair OBDII code P1171 on a Land Rover?

- The cost of repairing this code can vary depending on the specific cause of the issue. Costs may include parts and labor for replacing components like oxygen sensors, air filters, or vacuum hoses.

8. Are there any preventative maintenance steps to avoid OBDII code P1171 on a Land Rover?

- Regularly scheduled maintenance, such as replacing air filters and oxygen sensors at recommended intervals, can help prevent issues that may trigger the P1171 code.

9. Can I reset the OBDII code P1171 on my Land Rover without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is essential to address the root cause of the problem to prevent the code from reoccurring and potentially causing more significant issues.

10. How long does it take to repair OBDII code P1171 on a Land Rover?

- The repair time can vary depending on the exact cause of the code and the complexity of the repair. It is recommended to consult with a qualified mechanic for a more accurate estimate.