P1168 2009 Nissan Sentra 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 2009 Nissan Sentra 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.
Code P1168 2009 Nissan Sentra Description
What are the Possible Causes of the DTC P1168 2009 Nissan Sentra?
- 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 2009 Nissan Sentra?
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 P1168 2009 Nissan Sentra 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 2009 Nissan Sentra code?
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Frequently Asked Questions about P1168 2009 Nissan Sentra Code
What does the OBDII code P1168 mean for a 2009 Nissan Sentra?
P1168 indicates a problem with the closed loop control function for Bank 2, which means the engine control module is having trouble managing the air-fuel mixture for that bank.
What are some common symptoms of the P1168 code?
Common symptoms include poor fuel economy, rough idling, engine misfires, and a check engine light illuminating on the dashboard.
What could cause the P1168 code to trigger in my Nissan Sentra?
Causes may include a faulty oxygen sensor, issues with the fuel system (like injectors), vacuum leaks, or problems with the engine control unit (ECU).
How can I diagnose the P1168 code?
You can start by using an OBDII scanner to confirm the code, then check the oxygen sensors, inspect vacuum lines for leaks, and examine the fuel delivery system for issues.
What are some repair tips for fixing the P1168 code?
Start by replacing any faulty oxygen sensors, fixing vacuum leaks, and ensuring that all engine components are functioning properly. It may also be helpful to reset the ECU after repairs to see if the code reappears.
Is it safe to drive my Nissan Sentra with a P1168 code?
While it may be drivable, it’s not recommended to ignore the code as it can lead to further engine damage or reduced fuel efficiency.
Can a dirty air filter trigger a P1168 code?
A dirty air filter can cause performance issues and affect the air-fuel mixture, potentially contributing to the P1168 code, but it is not a direct cause.
Will clearing the P1168 code fix the problem?
Clearing the code may temporarily turn off the check engine light, but it won’t resolve the underlying issue causing the code to trigger.
How much does it typically cost to repair the P1168 code?
Repair costs can vary widely depending on the underlying cause, but it could range from $100 to $800 or more, including parts and labor.
Should I take my car to a mechanic for a P1168 code, or can I fix it myself?
If you have experience with automotive repairs, you may attempt to diagnose and fix the issue yourself. However, if you're unsure, it's best to consult a professional mechanic.
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