AutoCodes – GMC – P013D GMC

P013D GMC Code - HO2S Slow Response Lean to Rich 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: P013D GMC indicates HO2S Slow Response Lean to Rich 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.

Save to My Repairs My Repairs

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

Code Popularity 1,975

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 P013D GMC 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 P013D GMC - HO2S Slow Response Lean to Rich Bank 2 Sensor 2 - AutoCodes.com — P013D GMC Code - HO2S Slow Response Lean to Rich Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P013D GMC?

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 P013D GMC?

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 P013D GMC 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 P013D GMC code?

Need more information on how to fix the P013D GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P013D GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P013D 2014 GMC Sierra — HO2S Slow Response Lean to Rich Bank 2 Sensor 2
P013D 2015 GMC Sierra — HO2S Slow Response Lean to Rich Bank 2 Sensor 2
P013D 2016 GMC Sierra — HO2S Slow Response Lean to Rich Bank 2 Sensor 2
P013D 2017 GMC Sierra — HO2S Slow Response Lean to Rich Bank 2 Sensor 2
P013D 2018 GMC Sierra — HO2S Slow Response Lean to Rich 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 P013D GMC Code

1. What are the common symptoms of OBDII code P013D GMC?

- Common symptoms include poor fuel economy, rough idle, engine misfires, and a noticeable decrease in overall engine performance.

2. What can cause the OBDII code P013D GMC to trigger?

- The code P013D GMC is triggered when the HO2S (Heated Oxygen Sensor) on Bank 2 Sensor 2 detects a slow response from a lean to rich condition.

3. How serious is the OBDII code P013D GMC?

- While the code may not cause immediate drivability issues, it can lead to long-term engine damage if left unresolved. It is recommended to address the issue promptly.

4. How do I diagnose the OBDII code P013D GMC?

- Diagnosis typically involves inspecting the Bank 2 Sensor 2 HO2S for proper operation, checking for any exhaust leaks, and ensuring there are no vacuum leaks in the system.

5. Can a faulty catalytic converter cause the OBDII code P013D GMC?

- Yes, a faulty catalytic converter can contribute to the triggering of the P013D code, as it may affect the oxygen sensor readings on Bank 2 Sensor 2.

6. What are some repair tips for fixing the OBDII code P013D GMC?

- Repair tips include replacing the Bank 2 Sensor 2 oxygen sensor, addressing any exhaust leaks, checking the catalytic converter for proper operation, and ensuring there are no vacuum leaks in the system.

7. Can driving with the OBDII code P013D GMC cause further damage to the vehicle?

- Driving with the P013D code may lead to decreased fuel efficiency and potential damage to the catalytic converter over time if not addressed promptly.

8. How much does it typically cost to repair the OBDII code P013D GMC?

- The cost of repairs for the P013D code can vary depending on the exact cause of the issue, but it generally ranges from $200 to $500 for parts and labor.

9. Can I reset the OBDII code P013D GMC without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is not recommended to do so without addressing the root cause, as the issue may persist and lead to further problems.

10. How long does it take to repair the OBDII code P013D GMC?

- The repair time for the P013D code can vary depending on the exact cause and complexity of the issue, but it typically takes a few hours to complete the necessary repairs.