AutoCodes – Audi – P117C Audi

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

Quick Answer

The Engine Control Module (ECM) monitors the Bank 3 Oxygen Sensor. Common causes include Faulty Oxygen Sensor, Oxygen Sensor harness is open or shorted, 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
P117C Audi indicates Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded.
Common causes
Common causes include Faulty Oxygen Sensor, Oxygen Sensor harness is open or shorted, 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,724
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 27, 2019
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Code P117C Audi Description

The Engine Control Module (ECM) monitors the Bank 3 Oxygen Sensor. The ECM sets the OBDII code when the Bank 3 Oxygen Sensor is not to factory specifications.
OBDII Code P117C Audi - Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded - AutoCodes.com
P117C Audi Code - Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded

What are the Possible Causes of the DTC P117C Audi?

  • Faulty Oxygen Sensor
  • Oxygen Sensor harness is open or shorted
  • Oxygen Sensor circuit poor electrical connection
  • Cylinder misfire
  • Rich/Lean air fuel ratio

How to Fix the DTC P117C Audi?

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 P117C Audi 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 P117C Audi code?

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

Need Help with the Code?

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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 Audi Code

1. What are the common symptoms of OBDII code P117C in an Audi?

- Common symptoms include reduced fuel efficiency, rough idling, hesitation during acceleration, and the illumination of the check engine light.

2. What does the OBDII code P117C Bank 3 Oxygen Sensor Correction Behind Converter Lean Control Limit Exceeded mean for an Audi?

- This code indicates that the oxygen sensor behind the catalytic converter in bank 3 is detecting a lean air-fuel mixture beyond the permissible limit.

3. What are the possible causes of OBDII code P117C in an Audi?

- Potential causes include a faulty oxygen sensor, vacuum leaks, fuel system issues, exhaust leaks, or problems with the catalytic converter.

4. How can I diagnose the OBDII code P117C in my Audi?

- Diagnosing this code typically involves using an OBDII scanner to retrieve the code, checking for any related codes, inspecting the oxygen sensor and related components, and performing a thorough visual inspection for leaks.

5. Can I continue driving my Audi with the OBDII code P117C present?

- It is not recommended to continue driving with this code present, as it can lead to reduced engine performance and potential damage to the catalytic converter and other engine components.

6. How can I repair OBDII code P117C in my Audi?

- Repairing this code may involve replacing the oxygen sensor behind the catalytic converter, repairing any vacuum or exhaust leaks, addressing fuel system issues, or replacing the catalytic converter if necessary.

7. Will resetting the check engine light make the OBDII code P117C go away?

- Resetting the check engine light may temporarily clear the code, but it will likely reappear if the underlying issue causing the lean air-fuel mixture is not addressed.

8. Are there any DIY tips for fixing OBDII code P117C in an Audi?

- DIY tips may include checking for visible leaks, ensuring the oxygen sensor connections are secure, and using an OBDII scanner to monitor live data while diagnosing the issue.

9. How much does it cost to repair OBDII code P117C in an Audi?

- The cost of repairing this code can vary depending on the underlying issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can a mechanic help me diagnose and repair OBDII code P117C in my Audi?

- Yes, a qualified mechanic with experience in diagnosing and repairing engine codes can help identify the root cause of P117C and perform the necessary repairs to resolve the issue.

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