AutoCodes – Nissan – P0137 2008 Nissan Maxima

P0137 2008 Nissan Maxima Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection. 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
P0137 2008 Nissan Maxima indicates Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection.
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.
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Code Popularity 5,091
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0137 2008 Nissan Maxima Description

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio. The HO2S output voltage changes suddenly in the vicinity of the stoichiometric ratio. The Engine Control Module (ECM) adjusts the fuel injection time so that the air-fuel ratio is nearly stoichiometric. The HO2S generates a voltage between 0.1 and 0.9 V in response to oxygen in the exhaust gas. If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V.
OBDII Code P0137 2008 Nissan Maxima - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2 - AutoCodes.com
P0137 2008 Nissan Maxima Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

What are the Possible Causes of the DTC P0137 2008 Nissan Maxima?

  • Faulty Rear Heated Oxygen Sensor Bank 1
  • Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
  • Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
  • Inappropriate fuel pressure
  • Faulty fuel injectors
  • Intake air leaks may be faulty
  • Exhaust gas leaks

How to Fix the DTC P0137 2008 Nissan Maxima?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0137 2008 Nissan Maxima 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 P0137 2008 Nissan Maxima code?

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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.

Frequently Asked Questions about P0137 2008 Nissan Maxima Code

1. What are the common symptoms of OBDII code P0137 on a 2008 Nissan Maxima?

- Common symptoms include poor fuel economy, rough idling, engine hesitation, and an illuminated check engine light.

2. What does the OBDII code P0137 "Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2" indicate?

- This code indicates a low voltage condition in the downstream oxygen sensor located after the catalytic converter on bank 1 of the engine.

3. What are the possible causes of OBDII code P0137 on a 2008 Nissan Maxima?

- Common causes include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, a failing catalytic converter, or issues with the engine control module (ECM).

4. How can I diagnose the root cause of OBDII code P0137 on my 2008 Nissan Maxima?

- Diagnose by inspecting the oxygen sensor wiring, checking for exhaust leaks, testing the oxygen sensor voltage, and scanning for related codes in the ECM.

5. Can I continue driving my 2008 Nissan Maxima with OBDII code P0137 active?

- While you may be able to drive the vehicle, it is recommended to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

6. Is it possible to reset the OBDII code P0137 on a 2008 Nissan Maxima without fixing the underlying issue?

- Yes, you can clear the code using an OBDII scanner, but the check engine light will likely reappear if the root cause of the problem is not resolved.

7. What is the typical repair process for fixing OBDII code P0137 on a 2008 Nissan Maxima?

- The repair process usually involves replacing the bank 1 sensor 2 oxygen sensor, repairing any damaged wiring, fixing exhaust leaks, or addressing other related issues identified during diagnosis.

8. How much does it cost to repair OBDII code P0137 on a 2008 Nissan Maxima?

- The cost can vary depending on the specific cause of the issue, but replacing the oxygen sensor typically ranges from $100 to $300, while addressing other underlying problems may increase the total repair cost.

9. Can a DIY enthusiast fix OBDII code P0137 on a 2008 Nissan Maxima?

- Yes, if you have the necessary tools and mechanical skills, you can attempt to replace the oxygen sensor or repair wiring issues yourself. However, professional diagnosis is recommended for accurate troubleshooting.

10. How often should the oxygen sensors be replaced in a 2008 Nissan Maxima to prevent OBDII code P0137 from recurring?

- Oxygen sensors typically last around 60,000 to 100,000 miles, but it is recommended to follow the manufacturer's maintenance schedule and replace them as needed to avoid issues like OBDII code P0137.

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