AutoCodes – Chevrolet – P1198 2014 Chevrolet Silverado

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

Quick Answer

The exhaust gas temperature sensors are variable resistors that measure the temperature of the exhaust gas. Common causes include Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted, Exhaust Gas Temperature Sensor circuit poor electrical connection. 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 Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted, Exhaust Gas Temperature Sensor circuit poor electrical connection.
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.

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Code Popularity 224

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1198 2014 Chevrolet Silverado Description

The exhaust gas temperature sensors are variable resistors that measure the temperature of the exhaust gas. The exhaust temperature sensor 1 is the first exhaust temperature sensor on the exhaust system, the following exhaust temperature sensors are counted upward from the engine outlet to the exhaust system end. The Engine Control Module (ECM) supplies 5 V to the exhaust gas temperature signal circuit and supplies a ground to the low reference circuit. The exhaust gas temperature sensor temperature information is used by the ECM during the exhaust gas particulate filter cleaning process. The Diagnostic Trouble Code (DTC) will be set if the ECM detects that the difference between measured exhaust gas temperature and the estimated exhaust gas temperature is greater than a calibrated amount for greater than 1 s.

OBDII Code P1198 2014 Chevrolet Silverado - Exhaust Gas Temperature Sensor 5 Performance Engine Running - AutoCodes.com — P1198 2014 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 5 Performance Engine Running

What does this mean?

What are the Possible Causes of the DTC P1198 2014 Chevrolet Silverado?

Faulty Exhaust Gas Temperature Sensor
Exhaust Gas Temperature Sensor harness is open or shorted
Exhaust Gas Temperature Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1198 2014 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1198 2014 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.

Need more information about the P1198 2014 Chevrolet Silverado code?

Need more information on how to fix the P1198 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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.