AutoCodes – Nissan – P0158 2007 Nissan Pathfinder

P0158 2007 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 2007 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 3,038

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 2007 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 2007 Nissan Pathfinder - HO2S22 Circuit High Voltage - AutoCodes.com — P0158 2007 Nissan Pathfinder Code - HO2S22 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0158 2007 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 2007 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 2007 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 2007 Nissan Pathfinder Code

1. What does the OBDII code P0158 for a 2007 Nissan Pathfinder mean?

- This code indicates a high voltage condition in the HO2S22 sensor circuit, also known as the downstream oxygen sensor.

2. What are some common symptoms of the P0158 code in a 2007 Nissan Pathfinder?

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

3. What can cause the P0158 code to trigger in a 2007 Nissan Pathfinder?

- Possible causes include a faulty downstream oxygen sensor, wiring issues in the sensor circuit, exhaust leaks, or a problem in the engine control module (ECM).

4. How can I diagnose the P0158 code in my 2007 Nissan Pathfinder?

- Diagnosing the P0158 code typically involves checking the downstream oxygen sensor's wiring and connections, inspecting the sensor for damage, and testing the sensor's voltage output.

5. Can I continue driving my 2007 Nissan Pathfinder with the P0158 code?

- It is not recommended to ignore the P0158 code and continue driving, as it can lead to decreased fuel efficiency and potential damage to the catalytic converter over time.

6. How can I repair the P0158 code in my 2007 Nissan Pathfinder?

- Repair options may include replacing the downstream oxygen sensor, repairing any damaged wiring or connections, fixing exhaust leaks, or resetting the ECM after addressing the issue.

7. Will resetting the check engine light fix the P0158 code in my 2007 Nissan Pathfinder?

- Simply resetting the check engine light will not fix the underlying issue causing the P0158 code. It is important to diagnose and repair the root cause of the problem.

8. How much does it cost to fix the P0158 code in a 2007 Nissan Pathfinder?

- The cost of fixing the P0158 code can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, or other related expenses.

9. Can a DIY enthusiast repair the P0158 code in a 2007 Nissan Pathfinder?

- DIY enthusiasts with the necessary tools and knowledge may be able to address the P0158 code themselves by following repair guides and being cautious with electrical components.

10. How often does the P0158 code occur in a 2007 Nissan Pathfinder?

- The occurrence of the P0158 code can vary, but it is relatively common in vehicles with aging oxygen sensors or issues related to the sensor circuit. Regular maintenance can help prevent this code from appearing.