AutoCodes – Infiniti – P1168 2005 Infiniti G35

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

Quick Answer

The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F) heater corresponding to the engine operating condition to keep the temperature of Air Fuel Ratio (A/F) element at the specified range. Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted, Air Fuel Ratio Sensor 1 Bank 2 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: P1168 2005 Infiniti G35 indicates Closed Loop Control Function Bank 2.
Common causes: Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted, Air Fuel Ratio Sensor 1 Bank 2 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.

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Code Popularity 5,516

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 01, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1168 2005 Infiniti G35 Description

OBDII Code P1168 2005 Infiniti G35 - Closed Loop Control Function Bank 2 - AutoCodes.com — P1168 2005 Infiniti G35 Code - Closed Loop Control Function Bank 2

What does this mean?

What are the Possible Causes of the DTC P1168 2005 Infiniti G35?

Faulty Air Fuel Ratio Sensor 1 Bank 2
Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted
Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection

How to Fix the DTC P1168 2005 Infiniti G35?

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 does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1168 2005 Infiniti G35 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 P1168 2005 Infiniti G35 code?

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

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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 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.