AutoCodes – Chevrolet – P013E Chevrolet

P013E Chevrolet Code - HO2S Delay Response Rich to Lean 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: P013E Chevrolet indicates HO2S Delay Response Rich to Lean 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 16,199

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 P013E 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 O2 sensor voltage has not decreased below 450 mV within a calibrated value of accumulated airflow.

OBDII Code P013E Chevrolet - HO2S Delay Response Rich to Lean Bank 1 Sensor 2 - AutoCodes.com — P013E Chevrolet Code - HO2S Delay Response Rich to Lean Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P013E Chevrolet?

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 P013E 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 P013E 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

P013E 2014 Chevrolet Silverado — HO2S Delay Response Rich to Lean Bank 1 Sensor 2
P013E 2015 Chevrolet Silverado — HO2S Delay Response Rich to Lean Bank 1 Sensor 2
P013E 2016 Chevrolet Silverado — HO2S Delay Response Rich to Lean Bank 1 Sensor 2
P013E 2017 Chevrolet Silverado — HO2S Delay Response Rich to Lean Bank 1 Sensor 2
P013E 2018 Chevrolet Silverado — HO2S Delay Response Rich to Lean 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 P013E Chevrolet Code

1. What are the common symptoms of OBDII code P013E in a Chevrolet vehicle?

- Common symptoms include decreased fuel efficiency, rough idling, engine hesitation, and potential stalling.

2. What can cause the HO2S Delay Response Rich to Lean Bank 1 Sensor 2 error code in a Chevrolet vehicle?

- Possible causes can include a faulty oxygen sensor (HO2S), vacuum leaks, exhaust system leaks, or issues with the fuel system.

3. How can I diagnose the P013E code in my Chevrolet?

- Diagnosing the code typically involves using an OBDII scanner to retrieve the code and then inspecting the oxygen sensor, checking for leaks, and testing the fuel system.

4. Can a dirty or clogged air filter trigger the P013E error code in a Chevrolet?

- Yes, a dirty or clogged air filter can disrupt the air-fuel mixture and lead to incorrect sensor readings, potentially causing the P013E code to appear.

5. What is the role of the Bank 1 Sensor 2 oxygen sensor in a Chevrolet's exhaust system?

- The Bank 1 Sensor 2 oxygen sensor monitors the exhaust gases after the catalytic converter to ensure the proper air-fuel ratio and emission levels.

6. Are there any DIY repair tips for fixing the HO2S Delay Response Rich to Lean Bank 1 Sensor 2 code in a Chevrolet?

- DIY repair tips may include checking and cleaning the oxygen sensor, inspecting for leaks, ensuring proper air intake, and verifying the fuel system's functionality.

7. How critical is it to address the P013E code in a Chevrolet promptly?

- It is important to address the P013E code promptly to prevent potential damage to the catalytic converter, reduce fuel consumption, and maintain optimal engine performance.

8. Can driving with the P013E code illuminated harm my Chevrolet's engine?

- Continuing to drive with the P013E code may lead to decreased fuel efficiency, increased emissions, and potential long-term damage to the engine or emissions system if left unresolved.

9. Is it recommended to reset the OBDII system after repairing the HO2S Delay Response Rich to Lean Bank 1 Sensor 2 issue in a Chevrolet?

- Yes, resetting the OBDII system after fixing the P013E code allows the vehicle's computer to relearn the corrected parameters and verify that the issue has been resolved.

10. What should I do if the P013E code persists in my Chevrolet after attempted repairs?

- If the P013E code persists after attempted repairs, it may be necessary to seek professional diagnostics and inspection to identify the root cause of the issue and ensure proper resolution.