Engine-Codes.com
Engine-Codes – Infiniti – P1168 2005 Infiniti G35

P1168 2005 Infiniti G35 Code - Closed Loop Control Function Bank 2

Quick Answer

The P1168 code for a 2005 Infiniti G35 indicates an issue with the closed-loop control function on bank 2 of the vehicle's engine. Common causes include Faulty oxygen sensor, Vacuum leaks, Issues with the 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
P1168 2005 Infiniti G35 indicates Closed Loop Control Function Bank 2.
Common causes
Common causes include Faulty oxygen sensor, Vacuum leaks, Issues with the 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 Aug 19, 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 P1168 2005 Infiniti G35 Description

The P1168 code for a 2005 Infiniti G35 indicates an issue with the closed-loop control function on bank 2 of the vehicle's engine. In a closed-loop system, the engine control module (ECM) continuously monitors various sensors to adjust fuel and air mixture for optimal combustion. Bank 2 refers to the side of the engine where cylinder number 2 is located. When this code is triggered, it means that the ECM has detected a problem with the closed-loop control function on this specific bank, which can lead to inefficient fuel combustion and affect the engine's performance.

OBDII Code P1168 2005 Infiniti G35 - Closed Loop Control Function Bank 2
P1168 2005 Infiniti G35 Code - Closed Loop Control Function Bank 2

Common Causes of P1168 2005 Infiniti G35

  1. Faulty oxygen sensor
  2. Vacuum leaks
  3. Issues with the fuel injector
  4. Faulty ECM
  5. Wiring or electrical connection issues

Symptoms of P1168 2005 Infiniti G35

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Check Engine Light illuminated
  5. Reduced power output

How to Fix P1168 2005 Infiniti G35

  1. Scan the vehicle's ECM to retrieve the specific trouble codes and pinpoint the exact issue.
  2. Inspect and test the oxygen sensor on bank 2 to ensure proper functioning.
  3. Check for vacuum leaks and repair or replace any damaged hoses.
  4. Test the fuel injector on bank 2 for proper operation and replace if necessary.
  5. Inspect the wiring and electrical connections related to the closed-loop control function on bank 2 and repair any damaged components.

Cost to Fix P1168 2005 Infiniti G35

The cost of repairing a P1168 code on a 2005 Infiniti G35 can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $100 to $500, while labor costs can range from $100 to $300. Overall, the total cost of resolving this issue could fall within the range of $200 to $800. It's important to note that labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple shops to ensure a competitive price.

What does this mean?

Tech Notes for P1168 2005 Infiniti G35

There is a Factory Service Bulletin for the 2005 Infiniti G35:
2005 Infiniti G35 Factory Service Bulletin OBDII Code P1168

The bulletin suggests reprogramming the Engine Control Module (ECM) first before replacing any parts.

When is the Code Detected?

The closed loop control function for bank 1 does not operate even when vehicle is driving in the specified condition, the closed loop control function for bank 2 does not operate even when
vehicle is driving in the specified condition.

Need more information about the P1168 2005 Infiniti G35 code?

Need more information on how to fix the P1168 2005 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1168 2005 Infiniti G35 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 P1168 2005 Infiniti G35 Code

1. What does OBDII code P1168 on a 2005 Infiniti G35 indicate?

The code P1168 in a 2005 Infiniti G35 relates to the Closed Loop Control Function Bank 2, signaling a malfunction in the air/fuel ratio sensor circuit.

2. What are the common symptoms of OBDII code P1168 in a 2005 Infiniti G35?

Common symptoms of code P1168 may include poor fuel economy, engine misfires, rough idling, and an illuminated check engine light on the dashboard.

3. What are the possible causes of OBDII code P1168 in a 2005 Infiniti G35?

Potential causes of code P1168 can range from a faulty air/fuel ratio sensor, damaged wiring or connectors in the sensor circuit, to an issue with the engine control module (ECM).

4. How can I diagnose the OBDII code P1168 on my 2005 Infiniti G35?

Diagnosing code P1168 involves using an OBDII scanner to retrieve the code, inspecting the air/fuel ratio sensor and its wiring, and checking for any other related faults in the system.

5. Can I continue driving my 2005 Infiniti G35 with OBDII code P1168 present?

It is not recommended to continue driving with code P1168 active, as it can lead to poor engine performance and potential damage if left unresolved.

6. How do I repair OBDII code P1168 on my 2005 Infiniti G35?

Repairing code P1168 may involve replacing the faulty air/fuel ratio sensor, repairing damaged wiring or connectors, or resetting the engine control module after addressing the underlying issue.

7. Is it possible to reset the OBDII code P1168 on a 2005 Infiniti G35 without fixing the underlying problem?

While you can clear the code with an OBDII scanner, it is crucial to address the root cause of code P1168 to prevent it from reoccurring and ensure optimal engine performance.

8. How much does it typically cost to repair OBDII code P1168 on a 2005 Infiniti G35?

The cost of repairing code P1168 can vary based on the specific issue and labor rates, but it may range from around $100 to $500, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P1168 on a 2005 Infiniti G35?

Depending on the individual's mechanical skills and access to tools, some DIY enthusiasts may be able to address code P1168 by replacing the air/fuel ratio sensor or repairing wiring themselves.

10. Will OBDII code P1168 cause my 2005 Infiniti G35 to fail an emissions test?

Yes, code P1168 can potentially cause your 2005 Infiniti G35 to fail an emissions test due to its impact on the air/fuel ratio and engine performance.

Discuss the causes and fixes for P1168 2005 Infiniti G35 OBDII Code

Submit a New Comment

Code P1168 2005 Infiniti G35 comments

No comments found for this page.