P1163 Infiniti Code - Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2
Quick Answer
The P1163 Infiniti code refers to an issue with the Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2. Common causes include Faulty oxygen sensor, Vacuum leak in the intake system, Clogged fuel injector. 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 Infiniti indicates Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2.
- Common causes
- Common causes include Faulty oxygen sensor, Vacuum leak in the intake system, Clogged fuel injector.
- 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 P1163 Infiniti Description
The P1163 Infiniti code refers to an issue with the Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2. This means that the oxygen sensor located in the exhaust system of the vehicle, specifically in bank 2 (which typically refers to the side of the engine that does not contain cylinder 1), is detecting a lean air-fuel mixture. The oxygen sensor is responsible for measuring the amount of oxygen in the exhaust gases and sending this information to the engine control module (ECM) for adjustments to the fuel mixture. A lean air-fuel mixture indicates that there is too much air and not enough fuel being burned in the engine.
Common Causes of P1163 Infiniti
- Faulty oxygen sensor
- Vacuum leak in the intake system
- Clogged fuel injector
- Malfunctioning mass airflow sensor
- Problem with the fuel pressure regulator
Symptoms of P1163 Infiniti
- Rough idling
- Hesitation or lack of power during acceleration
- Decreased fuel efficiency
- Check Engine Light illuminated on the dashboard
- Engine stalling or misfiring
How to Fix P1163 Infiniti
- Diagnose the specific cause of the lean condition using a scan tool to read the code and pinpoint the issue.
- Inspect the oxygen sensor in bank 2 for any signs of damage or malfunction and replace if necessary.
- Check for vacuum leaks in the intake system and repair any leaks found.
- Clean or replace clogged fuel injectors.
- Test and potentially replace the mass airflow sensor or fuel pressure regulator if they are determined to be faulty.
Cost to Fix P1163 Infiniti
The typical repair costs for addressing a P1163 Infiniti code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing an oxygen sensor can range from $200 to $500, including parts and labor. However, additional costs may arise if other components need to be repaired or replaced. It's recommended to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model. Labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150 per hour.
Tech Notes for P1163 Infiniti
When is the Code Detected?
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Information for Specific Infiniti Models
- P1163 2003 Infiniti G35 — Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2
Frequently Asked Questions about P1163 Infiniti Code
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