AutoCodes – Chevrolet – P013C Chevrolet

P013C Chevrolet Code - HO2S Slow Response Rich to Lean Bank 2 Sensor 2

Quick Answer

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Common causes include Faulty Heated Oxygen Bank 2 Sensor 2, Heated Oxygen Bank 2 Sensor 2 harness is open or shorted, Heated Oxygen Bank 2 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: P013C Chevrolet indicates HO2S Slow Response Rich to Lean Bank 2 Sensor 2.
Common causes: Common causes include Faulty Heated Oxygen Bank 2 Sensor 2, Heated Oxygen Bank 2 Sensor 2 harness is open or shorted, Heated Oxygen Bank 2 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.

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Code Popularity 4,558

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
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Code P013C Chevrolet 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 accumulated mass airflow monitored during rich-to-lean transitions between 450 - 150 mV is greater than calibrated value.

OBDII Code P013C Chevrolet - HO2S Slow Response Rich to Lean Bank 2 Sensor 2 - AutoCodes.com — P013C Chevrolet Code - HO2S Slow Response Rich to Lean Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P013C Chevrolet?

Faulty Heated Oxygen Bank 2 Sensor 2
Heated Oxygen Bank 2 Sensor 2 harness is open or shorted
Heated Oxygen Bank 2 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 P013C Chevrolet?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P013C Chevrolet 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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Information for Specific Chevrolet Models

P013C 2014 Chevrolet Silverado — HO2S Slow Response Rich to Lean Bank 2 Sensor 2
P013C 2015 Chevrolet Silverado — HO2S Slow Response Rich to Lean Bank 2 Sensor 2
P013C 2016 Chevrolet Silverado — HO2S Slow Response Rich to Lean Bank 2 Sensor 2
P013C 2017 Chevrolet Silverado — HO2S Slow Response Rich to Lean Bank 2 Sensor 2
P013C 2018 Chevrolet Silverado — HO2S Slow Response Rich to Lean Bank 2 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 P013C Chevrolet Code

1. What are the common symptoms of OBDII code P013C on a Chevrolet indicating a HO2S slow response rich to lean condition on bank 2 sensor 2?

The common symptoms include decreased fuel efficiency, rough idle, engine hesitation, and a noticeable decrease in overall engine performance.

2. What typically causes the OBDII code P013C to appear on a Chevrolet vehicle?

The code P013C usually indicates a faulty or failing oxygen sensor (HO2S) on bank 2 sensor 2, which is responsible for monitoring the air-fuel mixture.

3. How can I diagnose the OBDII code P013C on my Chevrolet if I suspect a HO2S slow response rich to lean issue on bank 2 sensor 2?

To diagnose the issue, you can use an OBDII scanner to read the fault code, perform a visual inspection of the sensor and its wiring, and conduct testing to verify the sensor's functionality.

4. What are some repair tips for addressing the OBDII code P013C related to a HO2S slow response rich to lean condition on bank 2 sensor 2 in a Chevrolet?

Repair tips may include replacing the oxygen sensor on bank 2 sensor 2, checking and repairing any damaged wiring or connectors, and ensuring proper installation and calibration of the new sensor.

5. Can driving with the OBDII code P013C present on a Chevrolet cause further damage to the vehicle?

Continuing to drive with the P013C code can potentially lead to decreased fuel efficiency, increased emissions, and possible damage to the catalytic converter over time if left unresolved.

6. How crucial is it to address the OBDII code P013C indicating a HO2S slow response rich to lean issue on bank 2 sensor 2 in a Chevrolet promptly?

It is essential to address the code promptly to prevent further damage to the engine, ensure optimal fuel efficiency, and maintain overall vehicle performance.

7. Are there any precautions to take when replacing the HO2S on bank 2 sensor 2 to resolve the OBDII code P013C on a Chevrolet?

It is crucial to follow the manufacturer's recommendations for sensor replacement, use the correct sensor for the vehicle, and ensure proper installation to avoid potential issues with the new sensor.

8. How can I prevent the OBDII code P013C from reappearing on my Chevrolet after resolving the HO2S slow response rich to lean condition on bank 2 sensor 2?

Regular maintenance, such as monitoring the vehicle's fuel system, addressing any underlying issues promptly, and ensuring proper sensor function and calibration, can help prevent the code from reappearing.

9. Is it possible to clear the OBDII code P013C related to the HO2S slow response rich to lean condition on bank 2 sensor 2 in a Chevrolet without addressing the root cause?

Clearing the code without addressing the root cause, such as a faulty oxygen sensor, may temporarily remove the warning light but will not resolve the underlying issue causing the code to appear.

10. Can a DIY enthusiast with basic automotive knowledge address the OBDII code P013C indicating a HO2S slow response rich to lean issue on bank 2 sensor 2 in a Chevrolet?

While some DIY enthusiasts may be able to replace the oxygen sensor themselves, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair to ensure the issue is resolved correctly.