Engine-CodesInfiniti – P0136 Infiniti

P0136 Infiniti Code - O2 Sensor Circuit Malfunction Bank 1 Sensor 2

Quick Answer

The P0136 code in an Infiniti indicates a malfunction in the O2 sensor circuit for Bank 1 Sensor 2. Common causes include Faulty O2 sensor, Damaged wiring or connectors in the O2 sensor circuit, Exhaust leaks near the O2 sensor. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0136 Infiniti indicates O2 Sensor Circuit Malfunction Bank 1 Sensor 2.
Common causes
Common causes include Faulty O2 sensor, Damaged wiring or connectors in the O2 sensor circuit, Exhaust leaks near the O2 sensor.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0136 Infiniti Description

The P0136 code in an Infiniti indicates a malfunction in the O2 sensor circuit for Bank 1 Sensor 2. The O2 sensor, also known as the oxygen sensor, is a vital component in the vehicle's exhaust system that measures the amount of oxygen in the exhaust gases. This specific sensor, positioned after the catalytic converter on Bank 1 of the engine, plays a crucial role in ensuring the optimal air-fuel mixture for combustion in the engine.

OBDII Code P0136 Infiniti - O2 Sensor Circuit Malfunction Bank 1 Sensor 2
P0136 Infiniti Code - O2 Sensor Circuit Malfunction Bank 1 Sensor 2

Common Causes of P0136 Infiniti

  1. Faulty O2 sensor
  2. Damaged wiring or connectors in the O2 sensor circuit
  3. Exhaust leaks near the O2 sensor
  4. Contaminated or degraded fuel
  5. Issues with the catalytic converter

Symptoms of P0136 Infiniti

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Poor acceleration
  4. Increased emissions
  5. Check Engine Light illuminated on the dashboard

How to Fix P0136 Infiniti

  1. Diagnose the O2 sensor circuit using a diagnostic scanner to confirm the P0136 code.
  2. Inspect the wiring and connectors for any damage or corrosion and repair or replace as necessary.
  3. Test the O2 sensor's functionality using a multimeter to determine if it is faulty.
  4. Replace the O2 sensor if it is determined to be malfunctioning.
  5. Clear the error code and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0136 Infiniti

The typical repair costs for addressing a P0136 code in an Infiniti can range from $200 to $500, including the cost of the O2 sensor and labor. However, prices can vary depending on the specific make and model of the vehicle, the location of the repair shop, and the rates charged for diagnosis and labor. It is advisable to obtain quotes from local auto repair shops to get a more accurate estimate for this repair.

Tech Notes for P0136 Infiniti

Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes care of the problem.

When is the Code Detected?

It takes more time for the sensor to respond between rich and lean than the specified time.

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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.

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