AutoCodes – Chevrolet – P013C 2018 Chevrolet Silverado

P013C 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 314

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 2018 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 rich-to-lean transitions between 450 - 150 mV is greater than calibrated value.

OBDII Code P013C 2018 Chevrolet Silverado - HO2S Slow Response Rich to Lean Bank 2 Sensor 2 - AutoCodes.com — P013C 2018 Chevrolet Silverado Code - HO2S Slow Response Rich to Lean Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P013C 2018 Chevrolet Silverado?

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 2018 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 P013C 2018 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 P013C 2018 Chevrolet Silverado Code

1. What does the OBDII code P013C mean on a 2018 Chevrolet Silverado?

The P013C code on a 2018 Chevrolet Silverado indicates "HO2S Slow Response Rich to Lean Bank 2 Sensor 2." This means that the oxygen sensor in Bank 2, sensor 2 is slow to respond when the fuel mixture changes from rich to lean.

2. Where is Bank 2 Sensor 2 located on a 2018 Chevrolet Silverado?

Bank 2 Sensor 2 is located on the side of the engine that does not contain cylinder #1. It is positioned after the catalytic converter in the exhaust system.

3. What are common symptoms of the P013C code in a 2018 Chevrolet Silverado?

Common symptoms include a check engine light, possible rough idling, decreased fuel efficiency, and sometimes a noticeable fuel odor from the exhaust.

4. What could cause the P013C code to appear on a 2018 Chevrolet Silverado?

Potential causes include a faulty oxygen sensor, leaks or restrictions in the exhaust system, problems with the fuel delivery system, or issues with the engine's air intake system.

5. How can I fix the P013C code on a 2018 Chevrolet Silverado?

Repairs might include replacing the Bank 2 Sensor 2 oxygen sensor, repairing any leaks in the exhaust system, cleaning or replacing the mass air flow sensor, or checking the fuel system for issues like a clogged fuel filter or failing fuel pump.

6. Is it safe to drive a 2018 Chevrolet Silverado with the P013C code?

While you can still drive your vehicle, it is advisable to address the issue soon to avoid potential long-term damage to the catalytic converter or other engine components.

7. How do I verify that the new O2 sensor has fixed the P013C code on my 2018 Chevrolet Silverado?

After replacing the sensor, clear the fault codes from the vehicleâ€™s computer with an OBDII scanner and drive the vehicle for several cycles to see if the P013C code returns. If it does not, the issue is likely resolved.

8. What tools are needed to diagnose the P013C code on a 2018 Chevrolet Silverado?

You'll need an OBDII scanner to read and clear the codes, possibly a multimeter to test the oxygen sensorâ€™s responsiveness, and a data streaming tool to monitor the sensor's performance in real-time.