Engine-CodesChevrolet – P1198 2014 Chevrolet Silverado

P1198 2014 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 5 Performance Engine Running

Quick Answer

The P1198 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado relates to the Exhaust Gas Temperature (EGT) Sensor 5 Performance while the engine is running. Common causes include Faulty EGT sensor 5, Wiring or connector issues related to the EGT sensor, Exhaust system leaks. 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
P1198 2014 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 5 Performance Engine Running.
Common causes
Common causes include Faulty EGT sensor 5, Wiring or connector issues related to the EGT sensor, Exhaust system leaks.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P1198 2014 Chevrolet Silverado Description

The P1198 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado relates to the Exhaust Gas Temperature (EGT) Sensor 5 Performance while the engine is running. This code indicates that there is a discrepancy between the expected performance of the EGT sensor 5 and the actual readings being received by the engine control module (ECM). The EGT sensor is responsible for monitoring the temperature of the exhaust gases leaving the engine. This information is crucial for the ECM to adjust fuel delivery and optimize engine performance.

OBDII Code P1198 2014 Chevrolet Silverado - Exhaust Gas Temperature Sensor 5 Performance Engine Running
P1198 2014 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 5 Performance Engine Running

Common Causes of P1198 2014 Chevrolet Silverado

  1. Faulty EGT sensor 5
  2. Wiring or connector issues related to the EGT sensor
  3. Exhaust system leaks
  4. ECM software issues
  5. Exhaust gas recirculation (EGR) system malfunction

Symptoms of P1198 2014 Chevrolet Silverado

  1. Decreased fuel efficiency
  2. Reduced power output
  3. Hesitation or rough idling
  4. Check Engine Light illuminated
  5. Failed emissions test

How to Fix P1198 2014 Chevrolet Silverado

  1. Begin by visually inspecting the EGT sensor 5, wiring, and connectors for any visible damage or corrosion.
  2. Use a multimeter to test the resistance of the EGT sensor and ensure it is within the manufacturer's specifications.
  3. Check for exhaust leaks and repair as necessary.
  4. Clear the DTC and reset the ECM to see if the code returns after repairs.
  5. If the issue persists, consider replacing the EGT sensor 5 and retesting the system.

Cost to Fix P1198 2014 Chevrolet Silverado

The typical repair costs for addressing a P1198 code on a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing the EGT sensor 5 and addressing any related wiring or connector issues can range from $150 to $400 for parts and labor. However, it is important to note that diagnostic time and labor rates at auto repair shops can vary significantly based on location, vehicle make and model, and engine type. It is recommended to check with local shops for a more accurate estimate based on your specific circumstances.

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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 P1198 2014 Chevrolet Silverado Code

1. What does the OBDII code P1198 mean on a 2014 Chevrolet Silverado?

P1198 indicates a performance issue with Exhaust Gas Temperature (EGT) Sensor 5 while the engine is running. This sensor monitors exhaust gas temperatures to optimize emissions and engine efficiency.

2. What are the symptoms of code P1198 in a 2014 Chevrolet Silverado?

Common symptoms include the check engine light turning on, reduced engine performance, decreased fuel efficiency, and potential issues with emissions compliance.

3. What causes the P1198 code to trigger in a 2014 Chevrolet Silverado?

Typical causes include a faulty EGT sensor 5, damaged wiring or connectors, soot buildup on the sensor, or an issue with the engine control module (ECM).

4. Can I drive my 2014 Chevrolet Silverado with the P1198 code active?

While the vehicle may still be drivable, ignoring the code can lead to decreased performance, increased emissions, and potential damage to the engine or exhaust system.

5. How do I diagnose the P1198 code on a 2014 Chevrolet Silverado?

Start by inspecting the EGT sensor 5 and its wiring for damage or corrosion. Use an OBDII scanner to monitor sensor readings and compare them to expected values.

6. How do I fix the P1198 code on my 2014 Chevrolet Silverado?

Repairs may involve replacing the faulty EGT sensor 5, cleaning soot buildup, repairing damaged wiring or connectors, or updating the ECM software if necessary.

7. How much does it cost to fix a P1198 code on a 2014 Chevrolet Silverado?

The repair cost varies, but replacing an EGT sensor typically ranges from $100 to $300, including parts and labor. Diagnosing and fixing wiring issues may cost more.

8. Can a dirty EGT sensor cause the P1198 code?

Yes, soot or carbon buildup on the sensor can interfere with its readings, causing the P1198 code to appear.

9. How can I prevent the P1198 code from occurring in my 2014 Chevrolet Silverado?

Regular maintenance, including cleaning the exhaust system and inspecting sensors and wiring, can help prevent this code from recurring.

10. Will clearing the P1198 code solve the issue in my 2014 Chevrolet Silverado?

Clearing the code without addressing the root cause will only provide a temporary fix. The code will likely return if the underlying issue is not resolved.

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