Engine-Codes.com
Engine-Codes – Infiniti – P1163 2003 Infiniti G35

P1163 2003 Infiniti G35 Code - Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2

Quick Answer

The P1163 code on a 2003 Infiniti G35 indicates an issue with the Heated Oxygen Sensor (HO2S) 1 located in Bank 2 of the engine. Common causes include Faulty Heated Oxygen Sensor (HO2S), Vacuum leaks in the intake system, Clogged fuel injectors. 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
P1163 2003 Infiniti G35 indicates Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2.
Common causes
Common causes include Faulty Heated Oxygen Sensor (HO2S), Vacuum leaks in the intake system, Clogged fuel injectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1163 2003 Infiniti G35 Description

The P1163 code on a 2003 Infiniti G35 indicates an issue with the Heated Oxygen Sensor (HO2S) 1 located in Bank 2 of the engine. This sensor is responsible for monitoring the oxygen levels in the exhaust gases to ensure optimal fuel efficiency and emissions control. When the sensor detects a lean air/fuel mixture, it triggers the P1163 code, indicating that the engine is running too lean.

OBDII Code P1163 2003 Infiniti G35 - Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2
P1163 2003 Infiniti G35 Code - Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2

Common Causes of P1163 2003 Infiniti G35

  1. Faulty Heated Oxygen Sensor (HO2S)
  2. Vacuum leaks in the intake system
  3. Clogged fuel injectors
  4. Malfunctioning mass airflow sensor
  5. Fuel delivery system issues

Symptoms of P1163 2003 Infiniti G35

  1. Decreased fuel efficiency
  2. Rough idle or stalling
  3. Engine misfires
  4. Check Engine Light illuminated
  5. Increased emissions

How to Fix P1163 2003 Infiniti G35

  1. Use an OBD-II scanner to retrieve the specific trouble code (P1163) and confirm the issue.
  2. Inspect the Heated Oxygen Sensor (HO2S) in Bank 2 for any signs of damage or wear.
  3. Check for vacuum leaks in the intake system and repair or replace any damaged components.
  4. Clean or replace clogged fuel injectors to ensure proper fuel delivery.
  5. Test the mass airflow sensor and replace if necessary to correct the air/fuel mixture.

Cost to Fix P1163 2003 Infiniti G35

The typical repair costs for addressing a P1163 code on a 2003 Infiniti G35 can range from $200 to $500, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is recommended to check local rates for a more accurate estimate.

What does this mean?

Tech Notes for P1163 2003 Infiniti G35

If there are no intake air leaks, the most likely cause of the P1163 code is the front O2 sensor bank 2.

When is the Code Detected?

The maximum and minimum voltage from the sensor are not reached to the specified voltages.

Need more information about the P1163 2003 Infiniti G35 code?

Need more information on how to fix the P1163 2003 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1163 2003 Infiniti G35 code diagnosed by a professional: Find a repair shop in your area

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 P1163 2003 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1163 in a 2003 Infiniti G35?

The common symptoms of code P1163 in a 2003 Infiniti G35 may include decreased fuel efficiency, rough idling, and potential hesitation during acceleration.

2. What can cause the OBDII code P1163 to trigger in a 2003 Infiniti G35?

The P1163 code in a 2003 Infiniti G35 is typically triggered by issues with the Heated Oxygen Sensor 1 in Bank 2, indicating a lean air-fuel mixture.

3. How can I diagnose the OBDII code P1163 in my 2003 Infiniti G35?

Diagnosing the P1163 code involves using an OBDII scanner to read the code, inspecting the Heated Oxygen Sensor 1 in Bank 2, and checking for any air leaks in the intake system.

4. What are some possible repair tips for fixing code P1163 in a 2003 Infiniti G35?

Repair tips for addressing the P1163 code in a 2003 Infiniti G35 may include replacing the Heated Oxygen Sensor 1 in Bank 2, fixing any vacuum leaks, and ensuring proper fuel system operation.

5. Can driving with the OBDII code P1163 in a 2003 Infiniti G35 cause further damage?

Continuously driving with the P1163 code in a 2003 Infiniti G35 can potentially lead to decreased engine performance and increased fuel consumption, so it's advisable to address the issue promptly.

6. How serious is the OBDII code P1163 in a 2003 Infiniti G35?

While the P1163 code may not cause immediate harm to the vehicle, it can negatively impact fuel efficiency and engine performance if left unresolved for an extended period.

7. Is it possible to reset the OBDII code P1163 in a 2003 Infiniti G35 without fixing the underlying issue?

While it is possible to clear the code using an OBDII scanner, it's crucial to address the root cause of the P1163 code to prevent it from reoccurring and potentially causing further problems.

8. How much does it typically cost to repair OBDII code P1163 in a 2003 Infiniti G35?

The cost of repairing the P1163 code in a 2003 Infiniti G35 can vary depending on the exact cause of the issue, but it may involve sensor replacement, which can range from $150 to $300.

9. Can a DIY enthusiast fix the OBDII code P1163 in a 2003 Infiniti G35?

While some aspects of addressing the P1163 code can be DIY-friendly, such as sensor replacement, it's recommended to have a good understanding of automotive systems before attempting repairs.

10. How often does the OBDII code P1163 occur in a 2003 Infiniti G35?

The P1163 code in a 2003 Infiniti G35 can occur sporadically due to various factors, including sensor wear, poor fuel quality, or issues with the air intake system. Regular maintenance can help prevent its occurrence.

Discuss the causes and fixes for P1163 2003 Infiniti G35 OBDII Code

Submit a New Comment

Code P1163 2003 Infiniti G35 comments

No comments found for this page.