AutoCodes – Ford – P0158 2001 Ford F150

P0158 2001 Ford F150 Code - O2 Sensor Circuit High Voltage Bank 2 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 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 2001 Ford F150 indicates O2 Sensor Circuit High Voltage Bank 2 Sensor 2.
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 2,713

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 2001 Ford F150 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 2001 Ford F150 - O2 Sensor Circuit High Voltage Bank 2 Sensor 2 - AutoCodes.com — P0158 2001 Ford F150 Code - O2 Sensor Circuit High Voltage Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0158 2001 Ford F150?

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 2001 Ford F150?

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.
The HO2S Sensor Signals are monitored for an over voltage fault. The code is set when HO2S signal voltage is 1.5 volts or greater.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0158 2001 Ford F150 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 2001 Ford F150 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 2001 Ford F150 Code

1. What are the common symptoms of OBDII code P0158 on a 2001 Ford F150?

The common symptoms of code P0158 (O2 Sensor Circuit High Voltage Bank 2 Sensor 2) in a 2001 Ford F150 may include poor fuel economy, rough idling, hesitation or stalling, and an illuminated check engine light.

2. What does the O2 Sensor Bank 2 Sensor 2 do in a 2001 Ford F150?

The Bank 2 Sensor 2 O2 sensor in a 2001 Ford F150 monitors the exhaust gases to determine the oxygen content after the catalytic converter, helping the engine control module adjust fuel delivery for optimal combustion.

3. What are the possible causes of OBDII code P0158 on a 2001 Ford F150?

Common causes of code P0158 (O2 Sensor Circuit High Voltage Bank 2 Sensor 2) on a 2001 Ford F150 include a faulty oxygen sensor, wiring issues in the O2 sensor circuit, a vacuum leak, exhaust system leaks, or a malfunctioning engine control module.

4. How can I diagnose the O2 sensor Bank 2 Sensor 2 issue on my 2001 Ford F150?

To diagnose the Bank 2 Sensor 2 O2 sensor issue on a 2001 Ford F150, you can use an OBDII scanner to retrieve the specific trouble code, visually inspect the wiring and connections for damage, test the sensor's voltage output, and check for any exhaust leaks.

5. How can I repair OBDII code P0158 on a 2001 Ford F150?

Repairing code P0158 on a 2001 Ford F150 involves replacing the Bank 2 Sensor 2 oxygen sensor if it is faulty, repairing any damaged wiring or connectors, fixing vacuum leaks, addressing exhaust system leaks, or reprogramming the engine control module if necessary.

6. Can I drive my 2001 Ford F150 with OBDII code P0158?

While you may be able to drive your 2001 Ford F150 with code P0158 (O2 Sensor Circuit High Voltage Bank 2 Sensor 2), it is recommended to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

7. How much does it cost to repair OBDII code P0158 on a 2001 Ford F150?

The cost to repair code P0158 on a 2001 Ford F150 can vary depending on the root cause of the issue, the cost of parts, and labor rates. Generally, replacing the Bank 2 Sensor 2 oxygen sensor can range from $100 to $300, excluding labor costs.

8. Can a DIY enthusiast fix OBDII code P0158 on a 2001 Ford F150?

Depending on the DIY enthusiast's skill level and access to tools, it is possible to address code P0158 on a 2001 Ford F150 by replacing the Bank 2 Sensor 2 oxygen sensor or repairing wiring issues. However, more complex diagnostics may require professional assistance.

9. How often should the O2 sensors be replaced on a 2001 Ford F150?

Oxygen sensors, including Bank 2 Sensor 2, typically have a lifespan of around 100,000 miles. However, factors like driving conditions and vehicle maintenance practices can impact sensor longevity. It is advisable to follow the manufacturer's recommended maintenance schedule.

10. Will disconnecting the battery reset OBDII code P0158 on a 2001 Ford F150?

Disconnecting the battery may temporarily clear the check engine light associated with code P0158 on a 2001 Ford F150, but it will not resolve the underlying issue causing the fault code. It is recommended to diagnose and address the root cause of the problem to prevent future occurrences.