AutoCodes – Generic – P013F

P013F Code - Oxygen Sensor Delayed Response Lean to Rich Bank 1 Sensor 2

Quick Answer

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Common causes include Faulty Heated Oxygen Bank 1 Sensor 2, Heated Oxygen Bank 1 Sensor 2 harness is open or shorted, Heated Oxygen Bank 1 Sensor 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: P013F indicates Oxygen Sensor Delayed Response Lean to Rich Bank 1 Sensor 2.
Common causes: Common causes include Faulty Heated Oxygen Bank 1 Sensor 2, Heated Oxygen Bank 1 Sensor 2 harness is open or shorted, Heated Oxygen Bank 1 Sensor 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 13,456

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 May 28, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P013F Description

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content of the exhaust stream. When the engine is started, the Engine Control Module (ECM) operates in an Open Loop mode, ignoring the HO2S signal voltage while calculating the air-to-fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a range of 0 - 1, 000 mV. Once sufficient HO2S voltage fluctuation is observed by the ECM, Closed Loop is entered. The ECM uses the HO2S voltage to determine the air-to-fuel ratio. An HO2S voltage that increases toward 1, 000 mV indicates a rich fuel mixture. An HO2S voltage that decreases toward 0 mV indicates a lean fuel mixture.
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the O2 sensor voltage has not increased above 350 mV within a calibrated value of accumulated airflow.

OBDII Code P013F - Oxygen Sensor Delayed Response Lean to Rich Bank 1 Sensor 2 - AutoCodes.com — P013F Code - Oxygen Sensor Delayed Response Lean to Rich Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P013F?

Faulty Heated Oxygen Bank 1 Sensor 2
Heated Oxygen Bank 1 Sensor 2 harness is open or shorted
Heated Oxygen Bank 1 Sensor 2 circuit poor electrical connection
Low or high fuel system pressure
Fuel contamination
Faulty fuel injectors
Exhaust gas leaks
Engine vacuum leaks

How to Fix the DTC P013F?

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 Sensors (HO2S) usually takes care of the problem.

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P013F 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 P013F code?

Need more information on how to fix the P013F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P013F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P013F Buick — HO2S Delay Response Lean to Rich Bank 1 Sensor 2
P013F Cadillac — HO2S Delay Response Lean to Rich Bank 1 Sensor 2
P013F Chevrolet — HO2S Delay Response Lean to Rich Bank 1 Sensor 2
P013F Ford — Oxygen Sensor Delayed Response Lean to Rich Bank 1 Sensor 2
P013F GMC — HO2S Delay Response Lean to Rich Bank 1 Sensor 2
P013F Lincoln — Oxygen Sensor Delayed Response Lean to Rich Bank 1 Sensor 2
P013F Mercury — Oxygen Sensor Delayed Response Lean to Rich Bank 1 Sensor 2
P013F Pontiac — HO2S Delay Response Lean to Rich Bank 1 Sensor 2
P013F Saturn — HO2S Delay Response Lean to Rich Bank 1 Sensor 2

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 P013F Code

1. What are the common symptoms of OBDII code P013F?

The common symptoms of code P013F include poor fuel economy, rough idle, hesitation or stalling, and an illuminated check engine light.

2. What could be the potential causes of OBDII code P013F?

Potential causes of code P013F include a faulty oxygen sensor, issues with the fuel system, vacuum leaks, exhaust leaks, or a problem with the engine's air intake system.

3. How can I diagnose the OBDII code P013F?

To diagnose code P013F, you can use an OBDII scanner to retrieve the code and then inspect the bank 1 sensor 2 oxygen sensor for any signs of damage or malfunction. Additionally, checking for any leaks in the exhaust system or vacuum system can help narrow down the issue.

4. Is it safe to continue driving with OBDII code P013F?

It is not recommended to continue driving with code P013F as it can lead to further damage to the engine and other components. It is best to address the issue promptly to avoid potential costly repairs.

5. How can I repair OBDII code P013F?

Repairing code P013F may involve replacing the bank 1 sensor 2 oxygen sensor, addressing any fuel system issues, fixing vacuum leaks, or repairing exhaust leaks. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.

6. Can a dirty air filter cause OBDII code P013F?

A dirty air filter may not directly cause OBDII code P013F, but it can affect the overall engine performance and fuel mixture, potentially leading to issues with the oxygen sensor's readings.

7. Will resetting the check engine light resolve OBDII code P013F?

Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing code P013F. It is essential to diagnose and repair the problem to prevent the code from reappearing.

8. How long does it typically take to repair OBDII code P013F?

The time required to repair code P013F can vary depending on the specific cause of the issue and the extent of the repairs needed. It is best to consult a mechanic for a more accurate estimate of the repair time.

9. Can a bad catalytic converter trigger OBDII code P013F?

A failing catalytic converter can potentially trigger code P013F by affecting the oxygen sensor readings. It is essential to inspect the catalytic converter as part of diagnosing and repairing the issue.

10. Will using fuel additives help resolve OBDII code P013F?

Using fuel additives is unlikely to resolve OBDII code P013F, as the issue is typically related to the oxygen sensor or other components in the fuel and exhaust systems. It is best to focus on diagnosing and repairing the specific cause of the code.