P1168 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)/Heated Oxygen Sensor 1 heater corresponding to the engine operating condition to keep the temperature of Air Fuel Ratio (A/F)/Heated Oxygen Sensor 1 element at the specified range. Common causes include For Models 2005 and up:, Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted. 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 indicates Closed Loop Control Function Bank 2.
- Common causes
- Common causes include For Models 2005 and up:, Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted.
- 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 Description
What are the Possible Causes of the DTC P1168?
-
For Models 2005 and up:
- 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 For Models before 2005:
- Faulty Heated Oxygen Sensor 1 Bank 2
- Heated Oxygen Sensor 1 Bank 2 harness is open or shorted
- Heated Oxygen Sensor 1 Bank 2 circuit poor electrical connection
How to Fix the DTC P1168?
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 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 code?
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Need Help with the Code?
Get the P1168 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1168 Acura — Air/Fuel Ratio Sensor Label Low Voltage
- P1168 Ford — Fuel Rail Pressure Sensor Condition Low Pressure
- P1168 Honda — Air/Fuel Ratio Sensor Label Low Voltage
- P1168 Hyundai — O2 Sensor Heater Power Sensor 2 Bank 1
- P1168 Infiniti — Closed Loop Control Function Bank 2
- P1168 Lincoln — Fuel Rail Pressure Sensor Condition Low Pressure
- P1168 Mazda — Fuel Rail Pressure Sensor In Range But Low
- P1168 Mercury — Fuel Rail Pressure Sensor Condition Low Pressure
- P1168 Nissan — Closed Loop Control Function Bank 2
Frequently Asked Questions about P1168 Code
1. What does OBDII code P1168 indicate?
The code P1168 refers to a Closed Loop Control Function Bank 2 error, signaling an issue with the closed-loop control system on bank 2 of the vehicle.
2. What are common symptoms of OBDII code P1168?
Common symptoms of code P1168 may include poor engine performance, decreased fuel efficiency, rough idling, and potential stalling of the vehicle.
3. What are the possible causes of OBDII code P1168?
Potential causes of code P1168 include faulty oxygen sensors, issues with the air fuel ratio, vacuum leaks, exhaust system problems, or a malfunctioning catalytic converter.
4. How can I diagnose OBDII code P1168?
Diagnosing code P1168 typically involves using an OBDII scanner to retrieve the code, checking the oxygen sensors, inspecting the exhaust system for leaks, and testing the air fuel ratio.
5. How do I repair OBDII code P1168?
Repairing code P1168 may involve replacing faulty oxygen sensors, repairing any leaks in the exhaust system, addressing issues with the air fuel ratio, or replacing a malfunctioning catalytic converter.
6. Can I drive my vehicle with OBDII code P1168?
It is not recommended to drive your vehicle with an unresolved P1168 code, as it can lead to further damage and potentially unsafe driving conditions. It's best to address the issue promptly.
7. Will resetting the OBDII code P1168 make it go away permanently?
Simply resetting the code may temporarily clear the check engine light, but if the underlying issue causing code P1168 is not repaired, the code is likely to reappear.
8. How much does it cost to fix OBDII code P1168?
The cost of fixing code P1168 can vary depending on the specific cause of the issue and the labor rates in your area. It's advisable to get a diagnostic from a qualified mechanic for an accurate estimate.
9. Can a DIY enthusiast repair OBDII code P1168?
Depending on your mechanical skills and access to tools, some aspects of repairing code P1168 may be possible for a DIY enthusiast. However, complex issues like catalytic converter replacement may require professional assistance.
10. How often does OBDII code P1168 occur in vehicles?
Code P1168 is not as common as some other OBDII codes but can still occur in vehicles, particularly in older models or those with high mileage. Regular maintenance and prompt repairs can help prevent this code from appearing.
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