P1168 2012 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 2012 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 2012 Nissan Sentra Description
What are the Possible Causes of the DTC P1168 2012 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 2012 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 2012 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.
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Frequently Asked Questions about P1168 2012 Nissan Sentra Code
1. What does the OBDII code P1168 mean for a 2012 Nissan Sentra?
P1168 refers to a "Closed Loop Control Function Bank 2" issue, indicating the ECU cannot maintain proper air-fuel mixture control on Bank 2 due to a sensor or system malfunction.
2. What are the common symptoms of code P1168 in a 2012 Nissan Sentra?
Symptoms may include poor fuel economy, rough idling, reduced engine performance, difficulty starting, or an illuminated check engine light.
3. What causes the P1168 code to appear in a 2012 Nissan Sentra?
Common causes include a faulty oxygen sensor, wiring issues, exhaust leaks, a malfunctioning mass air flow (MAF) sensor, or a failing fuel injector.
4. How do I diagnose the P1168 code on my 2012 Nissan Sentra?
Start by checking the oxygen sensor on Bank 2 for proper operation, inspect wiring and connectors for damage, and check for vacuum or exhaust leaks.
5. Can a bad oxygen sensor cause the P1168 code in a 2012 Nissan Sentra?
Yes, a failing or contaminated oxygen sensor on Bank 2 is one of the most common causes of this code.
6. How do I fix the P1168 code on my 2012 Nissan Sentra?
Repairs may involve replacing the oxygen sensor, fixing wiring or connector issues, addressing exhaust or vacuum leaks, or cleaning/replacing the MAF sensor.
7. Is it safe to drive my 2012 Nissan Sentra with the P1168 code?
While the car may still be drivable, ignoring the code can lead to poor performance, increased emissions, and potential damage to the catalytic converter.
8. How much does it cost to fix the P1168 code on a 2012 Nissan Sentra?
Repair costs can vary but typically range from $150 to $300 for replacing an oxygen sensor, depending on labor rates and part prices.
9. Can a dirty MAF sensor trigger the P1168 code on a 2012 Nissan Sentra?
Yes, a dirty or malfunctioning MAF sensor can cause incorrect air-fuel mixture readings, leading to the P1168 code.
10. What tools do I need to troubleshoot the P1168 code on my 2012 Nissan Sentra?
You’ll need an OBDII scanner, a multimeter for testing sensors and wiring, and basic tools for inspecting and replacing components like the oxygen sensor or MAF sensor.
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