Engine-CodesNissan – P1168 2007 Nissan Maxima

P1168 2007 Nissan Maxima Code - Closed Loop Control Function Bank 2

Quick Answer

The P1168 code for a 2007 Nissan Maxima refers to an issue with the Closed Loop Control Function on Bank 2. Common causes include Faulty oxygen sensor, Clogged fuel injectors, Vacuum leaks. 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 2007 Nissan Maxima indicates Closed Loop Control Function Bank 2.
Common causes
Common causes include Faulty oxygen sensor, Clogged fuel injectors, Vacuum leaks.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P1168 2007 Nissan Maxima Description

The P1168 code for a 2007 Nissan Maxima refers to an issue with the Closed Loop Control Function on Bank 2. In an ideal operating condition, the engine control module (ECM) continuously monitors the air-fuel ratio and adjusts it to maintain optimal combustion efficiency. The closed-loop control system uses input from various sensors to make real-time adjustments to fuel delivery and ignition timing. Bank 2 typically refers to the side of the engine where cylinder 2 is located.

OBDII Code P1168 2007 Nissan Maxima - Closed Loop Control Function Bank 2
P1168 2007 Nissan Maxima Code - Closed Loop Control Function Bank 2

Common Causes of P1168 2007 Nissan Maxima

  1. Faulty oxygen sensor
  2. Clogged fuel injectors
  3. Vacuum leaks
  4. Exhaust system leaks
  5. Wiring or connector issues

Symptoms of P1168 2007 Nissan Maxima

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Check Engine Light illuminated
  5. Lack of power or acceleration

How to Fix P1168 2007 Nissan Maxima

  1. Use an OBD-II scanner to confirm the P1168 code and identify the specific cylinder on Bank 2.
  2. Inspect the oxygen sensor on Bank 2 and replace if necessary.
  3. Check for vacuum leaks and repair any damaged hoses or components.
  4. Clean or replace clogged fuel injectors on Bank 2.
  5. Perform a smoke test to identify exhaust leaks and address any issues found.

Cost to Fix P1168 2007 Nissan Maxima

The cost of repairing a P1168 code on a 2007 Nissan Maxima can vary depending on the exact cause of the issue. In general, replacing an oxygen sensor can cost between $200 and $300, while cleaning or replacing fuel injectors may range from $50 to $100 per injector. Labor costs can add to the total repair bill, with rates typically ranging from $80 to $150 per hour. It's recommended to consult with a mechanic or dealership for a more accurate estimate based on your specific circumstances.

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.

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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 2007 Nissan Maxima Code

1. What does OBDII code P1168 on a 2007 Nissan Maxima indicate?

The code P1168 relates to the Closed Loop Control Function Bank 2 on the vehicle's engine.

2. What are the common symptoms of OBDII code P1168 in a 2007 Nissan Maxima?

Common symptoms may include reduced engine performance, decreased fuel efficiency, and potential engine stalling.

3. What are the possible causes of OBDII code P1168 in a 2007 Nissan Maxima?

Potential causes may include a faulty oxygen sensor, issues with the fuel system, vacuum leaks, or problems with the engine control module (ECM).

4. How can I diagnose the OBDII code P1168 on my 2007 Nissan Maxima?

Diagnosis typically involves using an OBDII scanner to read the code, checking for other related codes, inspecting the oxygen sensor, and testing the fuel system.

5. Can I continue driving my 2007 Nissan Maxima with the OBDII code P1168?

It is not recommended to drive the vehicle with a persistent P1168 code, as it can lead to further engine damage and potential safety hazards.

6. How can I repair OBDII code P1168 on my 2007 Nissan Maxima?

Repair options may include replacing the oxygen sensor, addressing any fuel system issues, fixing vacuum leaks, or reprogramming the ECM.

7. Can I reset the OBDII code P1168 on my 2007 Nissan Maxima?

Resetting the code can be done using an OBDII scanner, but it is essential to address the underlying issue causing the code before clearing it.

8. Is OBDII code P1168 a serious issue in a 2007 Nissan Maxima?

While the severity can vary, it is crucial to address code P1168 promptly to prevent potential engine damage and ensure optimal vehicle performance.

9. Will OBDII code P1168 cause my 2007 Nissan Maxima to fail an emissions test?

Yes, a persistent P1168 code can cause your vehicle to fail an emissions test due to the impact on fuel efficiency and emissions control.

10. How much does it typically cost to repair OBDII code P1168 on a 2007 Nissan Maxima?

The repair costs for code P1168 can vary depending on the underlying cause, but it may range from a few hundred to over a thousand dollars, including parts and labor.

Discuss the causes and fixes for P1168 2007 Nissan Maxima OBDII Code

  • I need to Know where it’s located and the steps on fixing it this article just tells me everything about it but nothing on how to actually fix it!

  • As the "Possible Causes" above indicate, the more likely cause of the problem is the Air Fuel Ratio Sensor 1 Bank 2. Here is the location of the sensor. I hope that helps.

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