AutoCodes – Chevrolet – P013B 2017 Chevrolet Silverado

P013B 2017 Chevrolet Silverado Code - HO2S Slow 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: P013B 2017 Chevrolet Silverado indicates HO2S Slow 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.

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Code Popularity 360

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 P013B 2017 Chevrolet Silverado 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 lean-to-rich transitions between 350 - 650 mV is greater than calibrated value.

OBDII Code P013B 2017 Chevrolet Silverado - HO2S Slow Response Lean to Rich Bank 1 Sensor 2 - AutoCodes.com — P013B 2017 Chevrolet Silverado Code - HO2S Slow Response Lean to Rich Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P013B 2017 Chevrolet Silverado?

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 P013B 2017 Chevrolet Silverado?

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 P013B 2017 Chevrolet Silverado 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 P013B 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P013B on a 2017 Chevrolet Silverado?

The common symptoms of code P013B include reduced fuel efficiency, rough idling, engine misfires, and the illumination of the Check Engine Light.

2. What does the OBDII code P013B "HO2S Slow Response Lean to Rich Bank 1 Sensor 2" mean for a 2017 Chevrolet Silverado?

This code indicates that the downstream oxygen sensor (Sensor 2) in Bank 1 is responding slowly as the air-fuel mixture shifts from lean to rich.

3. What are the possible causes of OBDII code P013B on a 2017 Chevrolet Silverado?

Common causes of code P013B include a faulty oxygen sensor, exhaust leaks, engine vacuum leaks, fuel system issues, or wiring problems related to the oxygen sensor.

4. How can I diagnose the OBDII code P013B on my 2017 Chevrolet Silverado?

Diagnosing code P013B typically involves using an OBDII scanner to retrieve the code, inspecting the oxygen sensor wiring, checking for exhaust leaks, and testing the sensor's response using a multimeter.

5. What are some repair tips for fixing OBDII code P013B on a 2017 Chevrolet Silverado?

Repair tips for resolving code P013B may include replacing the oxygen sensor, repairing any exhaust leaks, fixing vacuum leaks, ensuring proper fuel system operation, and addressing any wiring issues.

6. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P013B?

It is not recommended to drive your vehicle with an unresolved OBDII code like P013B, as it can lead to more serious engine problems over time. It's advisable to address the issue promptly.

7. How much does it typically cost to repair OBDII code P013B on a 2017 Chevrolet Silverado?

The cost of repairing code P013B can vary depending on the underlying issue. Repair costs may include the price of a new oxygen sensor, labor charges for diagnosis and replacement, and any additional repairs needed.

8. Is it possible to reset the Check Engine Light after fixing OBDII code P013B on a 2017 Chevrolet Silverado?

Once the underlying issue causing code P013B has been resolved, 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 the oxygen sensors be replaced on a 2017 Chevrolet Silverado to prevent OBDII code P013B?

Oxygen sensors are wear items and may need replacement every 60,000 to 90,000 miles to ensure optimal engine performance and prevent issues like code P013B from occurring.

10. Can a DIY enthusiast fix OBDII code P013B on a 2017 Chevrolet Silverado, or is it best left to a professional mechanic?

While some DIY enthusiasts may be able to diagnose and address code P013B themselves, it's recommended to consult a professional mechanic for accurate diagnosis and proper repair to ensure the issue is resolved correctly.