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P113B 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 1 Not Plausible

Quick Answer

The P113B diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates that the Exhaust Gas Temperature Sensor 1 is not providing plausible data to the vehicle's engine control module (ECM). Common causes include Faulty Sensor: The most common cause of this code is a faulty exhaust gas temperature sensor that is not providing accurate readings, Wiring Issues: Damage or corrosion to the sensor's wiring can also cause inconsistencies in the data being transmitted to the ECM, Exhaust System Leak: A leak in the exhaust system before the sensor can lead to incorrect temperature readings. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P113B 2017 GMC Sierra indicates Exhaust Gas Temperature Sensor 1 Not Plausible.
Common causes
Common causes include Faulty Sensor: The most common cause of this code is a faulty exhaust gas temperature sensor that is not providing accurate readings, Wiring Issues: Damage or corrosion to the sensor's wiring can also cause inconsistencies in the data being transmitted to the ECM, Exhaust System Leak: A leak in the exhaust system before the sensor can lead to incorrect temperature readings.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P113B 2017 GMC Sierra Description

The P113B diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates that the Exhaust Gas Temperature Sensor 1 is not providing plausible data to the vehicle's engine control module (ECM). This sensor is responsible for monitoring the temperature of the exhaust gas as it exits the engine. When the sensor's readings are not within the expected range, it can lead to issues with the vehicle's performance and emissions control.

OBDII Code P113B 2017 GMC Sierra - Exhaust Gas Temperature Sensor 1 Not Plausible
P113B 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 1 Not Plausible

Common Causes of P113B 2017 GMC Sierra

  1. Faulty Sensor: The most common cause of this code is a faulty exhaust gas temperature sensor that is not providing accurate readings.
  2. Wiring Issues: Damage or corrosion to the sensor's wiring can also cause inconsistencies in the data being transmitted to the ECM.
  3. Exhaust System Leak: A leak in the exhaust system before the sensor can lead to incorrect temperature readings.
  4. Exhaust Gas Recirculation (EGR) System Malfunction: Issues with the EGR system can impact the exhaust gas temperature sensor's readings.
  5. ECM Malfunction: In rare cases, a malfunctioning ECM may not be able to interpret the sensor data correctly, triggering this code.

Symptoms of P113B 2017 GMC Sierra

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Decreased Fuel Efficiency: A faulty exhaust gas temperature sensor can lead to poor fuel economy as the engine may not be running at optimal efficiency.
  3. Loss of Engine Power: The vehicle may experience a decrease in power output due to incorrect fuel mixture and timing adjustments.
  4. Rough Idle: An irregular or rough idle may be noticed when the sensor is not functioning correctly.
  5. Increased Emissions: A malfunctioning exhaust gas temperature sensor can cause an increase in emissions output from the vehicle.

How to Fix P113B 2017 GMC Sierra

  1. Diagnosis: Begin by using a scan tool to confirm the P113B code and then inspect the exhaust gas temperature sensor and its wiring for any visible damage.
  2. Sensor Replacement: If the sensor is faulty, it will need to be replaced with a new one that meets the manufacturer's specifications.
  3. Wiring Repair: Address any issues with the sensor's wiring, such as repairing damaged wires or connectors.
  4. Exhaust System Inspection: Check for leaks in the exhaust system and repair them if necessary to ensure accurate sensor readings.
  5. ECM Reset: After completing the repairs, reset the ECM to clear the code and retest the vehicle to ensure the issue has been resolved.

Cost to Fix P113B 2017 GMC Sierra

The cost of repairing a P113B code on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. Generally, the cost of replacing an exhaust gas temperature sensor ranges from $100 to $300, with additional costs for any necessary wiring repairs or other components. Factoring in labor rates, the total repair cost could range from $200 to $500. It's recommended to consult with a trusted mechanic or auto repair shop for an accurate estimate based on your vehicle's condition and location.

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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 P113B 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P113B on a 2017 GMC Sierra related to the Exhaust Gas Temperature Sensor 1 Not Plausible?

- Common symptoms include reduced engine performance, decreased fuel efficiency, and possibly the illumination of the check engine light.

2. What are the possible causes of OBDII code P113B in a 2017 GMC Sierra indicating Exhaust Gas Temperature Sensor 1 Not Plausible?

- The code P113B can be triggered by issues such as a faulty exhaust gas temperature sensor, wiring or connector problems, or issues with the sensor's circuit.

3. How can I diagnose the OBDII code P113B on my 2017 GMC Sierra that points to Exhaust Gas Temperature Sensor 1 Not Plausible?

- Diagnosis involves using a diagnostic scanner to read the code, checking the sensor's wiring and connections for damage, and testing the sensor's functionality.

4. What steps can I take to repair OBDII code P113B on a 2017 GMC Sierra related to Exhaust Gas Temperature Sensor 1 Not Plausible?

- Repair may involve replacing the exhaust gas temperature sensor, repairing any damaged wiring or connectors, or resetting the fault code after addressing the underlying issue.

5. Can driving with OBDII code P113B showing on a 2017 GMC Sierra with Exhaust Gas Temperature Sensor 1 Not Plausible cause further damage?

- Continuing to drive with this code may lead to reduced engine efficiency and potential long-term damage, so it's advisable to address the issue promptly.

6. Is it safe to clear the OBDII code P113B related to Exhaust Gas Temperature Sensor 1 Not Plausible on my 2017 GMC Sierra without fixing the underlying problem?

- Clearing the code without fixing the issue will only temporarily turn off the check engine light and may not solve the root cause of the problem.

7. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P113B indicating Exhaust Gas Temperature Sensor 1 Not Plausible on a 2017 GMC Sierra?

- Depending on the specific cause, a DIYer may be able to address the issue by replacing the sensor or repairing wiring, but more complex problems may require professional assistance.

8. How much does it typically cost to repair OBDII code P113B on a 2017 GMC Sierra related to Exhaust Gas Temperature Sensor 1 Not Plausible?

- The repair cost can vary based on the cause of the issue, but it may involve sensor replacement, wiring repairs, or connector fixes, with costs ranging from $100 to $300 or more.

9. Are there any preventive measures I can take to avoid OBDII code P113B (Exhaust Gas Temperature Sensor 1 Not Plausible) on my 2017 GMC Sierra in the future?

- Regular maintenance, such as checking the sensor connections during tune-ups, using quality fuel, and driving gently, can help prevent issues that trigger this code.

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