P1198 2016 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Performance Engine Running
Quick Answer
The P1198 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a performance issue with Exhaust Gas Temperature (EGT) Sensor 5 while the engine is running. Common causes include Faulty EGT Sensor 5, Wiring issues (shorts, opens, or damage), Damaged connector. 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 2016 GMC Sierra indicates Exhaust Gas Temperature Sensor 5 Performance Engine Running.
- Common causes
- Common causes include Faulty EGT Sensor 5, Wiring issues (shorts, opens, or damage), Damaged connector.
- 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 P1198 2016 GMC Sierra Description
The P1198 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a performance issue with Exhaust Gas Temperature (EGT) Sensor 5 while the engine is running. The EGT sensor is responsible for monitoring the temperature of the exhaust gases leaving the engine. This information is crucial for the engine control module (ECM) to adjust fuel delivery and timing to optimize performance and emissions.
Common Causes of P1198 2016 GMC Sierra
- Faulty EGT Sensor 5
- Wiring issues (shorts, opens, or damage)
- Damaged connector
- ECM malfunction
- Exhaust system leaks
Symptoms of P1198 2016 GMC Sierra
- Reduced engine performance
- Decreased fuel efficiency
- Illuminated check engine light
- Rough idling or stalling
- Increased emissions
How to Fix P1198 2016 GMC Sierra
- Begin by conducting a thorough inspection of the EGT Sensor 5, wiring, and connector for any visible damage.
- Use a multimeter to test the resistance and voltage of the EGT Sensor 5 to determine if it is functioning correctly.
- If the sensor is faulty, replace it with a new, OEM-quality sensor.
- Check and repair any damaged wiring or connectors as needed.
- Clear the DTC with a scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1198 2016 GMC Sierra
The typical repair costs for addressing a P1198 code on a 2016 GMC Sierra can range from $150 to $400, including parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher at dealerships or in metropolitan areas, and lower at independent shops. It is recommended to inquire about local rates for a more accurate estimate.
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Frequently Asked Questions about P1198 2016 GMC Sierra Code
1. What does the OBDII code P1198 mean on a 2016 GMC Sierra?
P1198 indicates an issue with the performance of Exhaust Gas Temperature (EGT) Sensor 5 while the engine is running, which monitors the temperature of exhaust gases.
2. What are the common symptoms of code P1198 in a 2016 GMC Sierra?
Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, and in some cases, the vehicle entering limp mode.
3. What causes the P1198 code on a 2016 GMC Sierra?
The common causes include a faulty EGT Sensor 5, damaged wiring or connectors, soot buildup on the sensor, or issues with the ECM (Engine Control Module).
4. Can I drive my 2016 GMC Sierra with the P1198 code?
Driving with the P1198 code is not recommended, as it can lead to further exhaust or engine damage. It’s best to address the issue promptly.
5. How do I fix the P1198 code on a 2016 GMC Sierra?
Repairs may involve replacing the faulty EGT sensor, cleaning soot buildup, repairing damaged wiring, or reprogramming/updating the ECM.
6. How can I diagnose the P1198 code in my GMC Sierra?
Use an OBDII scanner to confirm the code, inspect EGT Sensor 5 and its wiring for damage, and test the sensor’s voltage and resistance with a multimeter.
7. How much does it cost to repair the P1198 code on a 2016 GMC Sierra?
The cost can vary, but replacing an EGT sensor typically ranges from $100 to $300, depending on parts and labor costs.
8. What happens if the P1198 code is ignored?
Ignoring the P1198 code can lead to increased emissions, reduced engine performance, and potential damage to the exhaust system or turbocharger.
9. Can a dirty EGT sensor cause the P1198 code?
Yes, soot or carbon buildup on the EGT sensor can impede its performance and trigger the P1198 code.
10. Does the P1198 code require ECM reprogramming?
In some cases, ECM reprogramming or software updates may be necessary if the issue is related to incorrect sensor readings due to outdated software.
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