Engine-Codes.com
Engine-Codes – Generic – P117C

P117C Code - Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded

Quick Answer

The diagnostic trouble code P117C indicates that the Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded. Common causes include Faulty oxygen sensor, Vacuum leak in the intake system, Clogged fuel injector. 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
P117C indicates Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded.
Common causes
Common causes include Faulty oxygen sensor, Vacuum leak in the intake system, Clogged fuel injector.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P117C Description

The diagnostic trouble code P117C indicates that the Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded. This means that the oxygen sensor located downstream of the catalytic converter in bank 3 of the engine has detected a lean air-fuel mixture beyond the control limits set by the vehicle's engine control module (ECM). This can lead to a variety of performance issues and potentially cause long-term damage if not addressed promptly.

OBDII Code P117C - Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded
P117C Code - Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded

Common Causes of P117C

  1. Faulty oxygen sensor
  2. Vacuum leak in the intake system
  3. Clogged fuel injector
  4. Malfunctioning fuel pressure regulator
  5. ECM software issue

Symptoms of P117C

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Check Engine Light illuminated
  5. Poor acceleration or hesitation

How to Fix P117C

  1. Use an OBD-II scanner to read and clear the fault codes.
  2. Inspect the oxygen sensor in bank 3 for any signs of damage or contamination.
  3. Check for vacuum leaks in the intake system and repair as necessary.
  4. Test the fuel injectors and replace any that are clogged or malfunctioning.
  5. Verify the fuel pressure regulator is functioning correctly and replace if needed.

Cost to Fix P117C

The cost of repairing a Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded code can vary depending on the specific cause of the issue. In general, the cost of replacing an oxygen sensor can range from $100 to $300, including parts and labor. However, if additional repairs are needed, such as fixing a vacuum leak or replacing a fuel injector, the total cost could be higher. It is recommended to consult with a qualified mechanic to get an accurate estimate based on the specific diagnosis and repair needed. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on location and other factors.

Need more information about the P117C code?

Need more information on how to fix the P117C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P117C code diagnosed by a professional: Find a repair shop in your area

Code P117C Information for Specific Makes

  • P117C Audi — Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded
  • P117C Volkswagen — Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded
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 P117C Code

1. What are the common symptoms of OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

The common symptoms include poor fuel economy, rough idling, engine hesitation, and a check engine light illuminated on the dashboard.

2. What are the possible causes of OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

Possible causes include a faulty oxygen sensor, a vacuum leak, a clogged fuel injector, a malfunctioning mass airflow sensor, or a problem with the fuel system.

3. How can I diagnose OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

Diagnosis typically involves using an OBDII scanner to read the code, inspecting the oxygen sensor, checking for vacuum leaks, testing the fuel injectors, and examining the mass airflow sensor.

4. What are the repair options for OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

Repair options may include replacing the oxygen sensor, fixing any vacuum leaks, cleaning or replacing clogged fuel injectors, repairing or replacing the mass airflow sensor, or addressing any issues with the fuel system.

5. Can I continue driving my vehicle with OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

It is not recommended to continue driving your vehicle with this code present, as it can lead to further damage to the engine and emissions system. It is best to address the issue promptly.

6. How long does it typically take to repair OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

The repair time can vary depending on the exact cause of the code and the extent of the repairs needed. It could range from a quick sensor replacement to a more involved troubleshooting process.

7. Can a DIY enthusiast fix OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

While some aspects of the repair may be within the realm of a skilled DIY enthusiast, diagnosing and repairing this code often requires specialized tools and knowledge. It is recommended to consult a professional mechanic for assistance.

8. What is the role of the oxygen sensor in relation to OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

The oxygen sensor measures the amount of oxygen in the exhaust gases and provides feedback to the engine control module. A malfunctioning oxygen sensor can lead to a lean air-fuel mixture, triggering this error code.

9. Are there any preventative maintenance steps to avoid OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

Regularly scheduled maintenance, such as changing the oxygen sensor at recommended intervals, ensuring the fuel system is clean, and checking for vacuum leaks, can help prevent issues that may trigger this error code.

10. Can weather or environmental conditions trigger OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded?

Extreme weather conditions or environmental factors can sometimes contribute to the triggering of this code, especially if they affect the engine's ability to maintain the correct air-fuel mixture ratio.

Discuss the causes and fixes for P117C OBDII Code

Submit a New Comment

Code P117C comments

No comments found for this page.