P1168 Infiniti Code - Closed Loop Control Function Bank 2
Quick Answer
The P1168 code in an Infiniti indicates an issue with the closed-loop control function on Bank 2 of the engine. Common causes include Faulty oxygen sensors, Vacuum leak, Malfunctioning mass airflow sensor. 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 Infiniti indicates Closed Loop Control Function Bank 2.
- Common causes
- Common causes include Faulty oxygen sensors, Vacuum leak, Malfunctioning mass airflow sensor.
- 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 P1168 Infiniti Description
The P1168 code in an Infiniti indicates an issue with the closed-loop control function on Bank 2 of the engine. In simple terms, this means that the engine control module (ECM) is having difficulty maintaining the correct air-fuel ratio in the exhaust system of the second bank of cylinders. The closed-loop control system is responsible for adjusting the fuel mixture in real-time based on feedback from oxygen sensors, ensuring optimal performance and emissions.
Common Causes of P1168 Infiniti
- Faulty oxygen sensors
- Vacuum leak
- Malfunctioning mass airflow sensor
- Clogged fuel injector
- Issue with the fuel pressure regulator
Symptoms of P1168 Infiniti
- Rough idling
- Decreased fuel efficiency
- Engine hesitation
- Stalling
- Loss of power
How to Fix P1168 Infiniti
- Diagnose the specific cause by performing a thorough inspection of the oxygen sensors, vacuum lines, mass airflow sensor, fuel injectors, and fuel pressure regulator.
- Replace any faulty components identified during the diagnostic process.
- Clear the diagnostic trouble codes from the ECM using a scan tool.
- Test drive the vehicle to ensure the issue has been resolved and that the closed-loop control function on Bank 2 is operating correctly.
- If necessary, perform a relearn procedure to recalibrate the ECM to the newly installed components.
Cost to Fix P1168 Infiniti
The cost of repairing a P1168 code on an Infiniti can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $200 and $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can differ, so it's advisable to obtain quotes from multiple shops to ensure a competitive price.
Tech Notes for P1168 Infiniti
2004-2005 Infiniti FX35 2WD
2004-2005 Infiniti FX35 4WD
2004-2005 Infiniti G35 Sedan 2WD
2004-2005 Infiniti G35 Sedan 4WD
Infiniti Factory Service Bulletin OBDII Code P1168
The bulletin suggests reprogramming the Engine Control Module (ECM) first before replacing any parts.
When is the Code Detected?
vehicle is driving in the specified condition.
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Information for Specific Infiniti Models
- P1168 2003 Infiniti G35 — Closed Loop Control Function Bank 2
- P1168 2004 Infiniti G35 — Closed Loop Control Function Bank 2
- P1168 2005 Infiniti G35 — Closed Loop Control Function Bank 2
- P1168 2006 Infiniti G35 — Closed Loop Control Function Bank 2
Frequently Asked Questions about P1168 Infiniti Code
1. What is the OBDII code P1168 in an Infiniti related to?
The code P1168 in an Infiniti is specifically related to the Closed Loop Control Function Bank 2.
2. What are some common symptoms of OBDII code P1168 in an Infiniti?
Common symptoms of OBDII code P1168 in an Infiniti may include poor engine performance, decreased fuel efficiency, and potential stalling.
3. What are possible causes of OBDII code P1168 in an Infiniti?
Possible causes of OBDII code P1168 in an Infiniti may include a faulty oxygen sensor, issues with the fuel system, vacuum leaks, or problems with the engine's air-fuel ratio.
4. How can I diagnose OBDII code P1168 in my Infiniti?
Diagnosing OBDII code P1168 in your Infiniti typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the oxygen sensor, checking for vacuum leaks, and testing the fuel system components.
5. Can I still drive my Infiniti with OBDII code P1168?
It is not recommended to drive your Infiniti with OBDII code P1168, as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly.
6. How serious is OBDII code P1168 in an Infiniti?
OBDII code P1168 in an Infiniti should be taken seriously, as it can impact the overall performance and efficiency of the vehicle. Ignoring the issue can lead to more severe problems over time.
7. What are some repair tips for fixing OBDII code P1168 in an Infiniti?
Repair tips for fixing OBDII code P1168 in an Infiniti may include replacing the oxygen sensor, repairing any vacuum leaks, checking the fuel system for issues, and ensuring proper air-fuel ratio.
8. Can I reset OBDII code P1168 in my Infiniti by disconnecting the battery?
While disconnecting the battery may clear the code temporarily, it is not a recommended method for fixing OBDII code P1168 in an Infiniti. It is best to address the underlying issue causing the code.
9. How much does it cost to repair OBDII code P1168 in an Infiniti?
The cost to repair OBDII code P1168 in an Infiniti can vary depending on the specific cause of the issue. It is recommended to consult with a professional mechanic for an accurate diagnosis and cost estimate.
10. Can a DIY enthusiast fix OBDII code P1168 in an Infiniti?
While some aspects of addressing OBDII code P1168 may be DIY-friendly, it is generally recommended to consult with a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.
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