AutoCodes – Nissan – P0158 2002 Nissan Sentra

P0158 2002 Nissan Sentra 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 2002 Nissan Sentra 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 6,314
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 P0158 2002 Nissan Sentra 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 2002 Nissan Sentra - HO2S22 Circuit High Voltage - AutoCodes.com
P0158 2002 Nissan Sentra Code - HO2S22 Circuit High Voltage

What are the Possible Causes of the DTC P0158 2002 Nissan Sentra?

  • 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 2002 Nissan Sentra?

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 P0158 2002 Nissan Sentra 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 P0158 2002 Nissan Sentra 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 P0158 2002 Nissan Sentra Code

1. What does the OBDII code P0158 for a 2002 Nissan Sentra mean?

- The code P0158 indicates that the HO2S22 sensor circuit has detected high voltage.

2. What are the common symptoms of a P0158 code in a 2002 Nissan Sentra?

- Common symptoms include decreased fuel efficiency, rough idling, and potential engine misfires.

3. What are the possible causes of a HO2S22 high voltage circuit issue in a 2002 Nissan Sentra?

- Potential causes can include a faulty oxygen sensor, wiring issues, exhaust leaks, or a malfunctioning engine control module.

4. How can I diagnose a P0158 code on my 2002 Nissan Sentra?

- Diagnosing a P0158 code typically involves checking the oxygen sensor's wiring, inspecting for exhaust leaks, and testing the sensor's voltage output.

5. How do I fix a HO2S22 high voltage circuit problem in my 2002 Nissan Sentra?

- Repair options may include replacing the oxygen sensor, repairing any damaged wiring, fixing exhaust leaks, or resetting the engine control module.

6. Can I drive my 2002 Nissan Sentra with a P0158 code?

- It is not recommended to drive with a P0158 code as it can lead to decreased fuel efficiency and potential engine performance issues.

7. How much does it cost to repair a P0158 code on a 2002 Nissan Sentra?

- The cost of repairing a P0158 code can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

8. Will resetting the OBDII code fix the P0158 issue in my 2002 Nissan Sentra?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the high voltage circuit problem.

9. Is it possible to prevent the P0158 code from appearing in my 2002 Nissan Sentra?

- Regular maintenance, such as replacing oxygen sensors as recommended by the manufacturer, can help prevent the occurrence of the P0158 code.

10. Can a P0158 code on a 2002 Nissan Sentra cause emissions test failure?

- Yes, a P0158 code can cause your 2002 Nissan Sentra to fail emissions testing due to its impact on the vehicle's emissions control system.

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