AutoCodes – Nissan – P0158 2004 Nissan Altima Sedan

P0158 2004 Nissan Altima Sedan 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 2004 Nissan Altima Sedan 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 2,809

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0158 2004 Nissan Altima Sedan 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 2004 Nissan Altima Sedan - HO2S22 Circuit High Voltage - AutoCodes.com — P0158 2004 Nissan Altima Sedan Code - HO2S22 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0158 2004 Nissan Altima Sedan?

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 2004 Nissan Altima Sedan?

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 2004 Nissan Altima Sedan 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 2004 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0158 in a 2004 Nissan Altima Sedan?

- Common symptoms include poor fuel economy, rough idling, engine misfires, and the illumination of the Check Engine light.

2. What does the OBDII code P0158 "HO2S22 Circuit High Voltage" indicate in a 2004 Nissan Altima Sedan?

- The code indicates that the oxygen sensor (HO2S) located after the catalytic converter is reporting a high voltage condition.

3. What are the possible causes of OBDII code P0158 in a 2004 Nissan Altima Sedan?

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

4. How can I diagnose the OBDII code P0158 in my 2004 Nissan Altima Sedan?

- Diagnose the code by checking the oxygen sensor wiring, inspecting for exhaust leaks, testing the sensor's voltage output, and scanning the ECM for related trouble codes.

5. Can driving with OBDII code P0158 in a 2004 Nissan Altima Sedan cause further damage?

- Continuing to drive with the code may lead to decreased fuel efficiency, potential damage to the catalytic converter, and increased emissions.

6. What are the repair options for resolving OBDII code P0158 in a 2004 Nissan Altima Sedan?

- Repair options include replacing the faulty oxygen sensor, repairing any wiring issues, fixing exhaust leaks, or reprogramming the ECM if necessary.

7. How much does it typically cost to fix OBDII code P0158 in a 2004 Nissan Altima Sedan?

- The cost of fixing the code can vary depending on the root cause, but it may range from $100 to $300 for parts and labor.

8. Can I reset the Check Engine light after fixing OBDII code P0158 in a 2004 Nissan Altima Sedan?

- Yes, you can reset the Check Engine light using an OBDII scanner or by disconnecting the car's battery for a few minutes.

9. How often should I replace the oxygen sensors in a 2004 Nissan Altima Sedan to prevent OBDII code P0158?

- Oxygen sensors generally last around 60,000 to 90,000 miles, so it's recommended to replace them within that mileage range to prevent issues.

10. Is it safe to ignore OBDII code P0158 in a 2004 Nissan Altima Sedan if the car is still running fine?

- While the car may still run fine, it's not advisable to ignore the code as it can lead to reduced fuel efficiency and potential damage to the catalytic converter over time.