AutoCodes – Nissan – P0158 2011 Nissan Pathfinder

P0158 2011 Nissan Pathfinder Code - HO2S22 Circuit High Voltage

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 2, Rear Heated Oxygen Sensor Bank 2 harness is open or shorted, Rear Heated Oxygen Sensor Bank 2 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: P0158 2011 Nissan Pathfinder indicates HO2S22 Circuit High Voltage.
Common causes: Common causes include Faulty Rear Heated Oxygen Sensor Bank 2, Rear Heated Oxygen Sensor Bank 2 harness is open or shorted, Rear Heated Oxygen Sensor Bank 2 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 2,400

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0158 2011 Nissan Pathfinder 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 P0158 2011 Nissan Pathfinder - HO2S22 Circuit High Voltage - AutoCodes.com — P0158 2011 Nissan Pathfinder Code - HO2S22 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0158 2011 Nissan Pathfinder?

Faulty Rear Heated Oxygen Sensor Bank 2
Rear Heated Oxygen Sensor Bank 2 harness is open or shorted
Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks
Exhaust gas leaks

How to Fix the DTC P0158 2011 Nissan Pathfinder?

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.

What does this mean?

Code Tech Notes

Replacing the Rear Heated Oxygen Sensor Bank 2 usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0158 2011 Nissan Pathfinder 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.

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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 P0158 2011 Nissan Pathfinder Code

1. What does the OBDII code P0158 on a 2011 Nissan Pathfinder mean?

The code P0158 indicates a high voltage condition in the HO2S22 (Heated Oxygen Sensor 2 Bank 2) circuit.

2. What are the common symptoms of a P0158 fault in a 2011 Nissan Pathfinder?

Common symptoms of a P0158 fault may include poor fuel economy, rough idling, engine misfires, and a noticeable decrease in overall vehicle performance.

3. What are the possible causes of the P0158 trouble code in a 2011 Nissan Pathfinder?

Potential causes of a P0158 code include a faulty HO2S22 sensor, wiring issues in the sensor circuit, a vacuum leak, exhaust system leaks, or a problem with the engine's air-fuel mixture.

4. How can I diagnose the cause of a P0158 code on my 2011 Nissan Pathfinder?

To diagnose a P0158 code, start by visually inspecting the sensor and its wiring for any visible damage. Use a multimeter to test the sensor's voltage output and check for any exhaust or vacuum leaks that may affect sensor readings.

5. Can I continue driving my 2011 Nissan Pathfinder with a P0158 fault code?

While it may be possible to drive with a P0158 fault, it is not recommended as it can lead to further damage to the vehicle and negatively impact its performance and fuel efficiency.

6. How can I repair a P0158 code on my 2011 Nissan Pathfinder?

Repairing a P0158 code typically involves replacing the faulty HO2S22 sensor, repairing any damaged wiring, fixing vacuum or exhaust leaks, and clearing the trouble code with an OBDII scanner.

7. Is it possible to reset a P0158 code on a 2011 Nissan Pathfinder without fixing the underlying issue?

While you can clear the trouble code with an OBDII scanner, it is crucial to address the root cause of the P0158 fault to prevent it from reoccurring and potentially causing more severe problems.

8. Are there any preventive maintenance tips to avoid the P0158 code on a 2011 Nissan Pathfinder?

Regularly inspecting and maintaining the vehicle's oxygen sensors, ensuring proper engine tune-up, and promptly addressing any engine performance issues can help prevent the occurrence of a P0158 fault.

9. How long does it typically take to repair a P0158 code on a 2011 Nissan Pathfinder?

The repair time for a P0158 fault can vary depending on the exact cause of the issue and the availability of replacement parts. In general, it may take a few hours to a day to diagnose and fix the problem.

10. Can a DIY enthusiast fix a P0158 code on a 2011 Nissan Pathfinder, or is professional help recommended?

While some DIY enthusiasts may be able to address a P0158 fault themselves, it is recommended to seek professional help if you are not experienced in diagnosing and repairing automotive electrical issues to ensure the problem is properly resolved.