P118E 2018 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 1 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
- P118E 2018 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 1 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.
Code P118E 2018 Chevrolet Silverado Description
What are the Possible Causes of the DTC P118E 2018 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 P118E 2018 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 P118E 2018 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.
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Frequently Asked Questions about P118E 2018 Chevrolet Silverado Code
What does the OBDII code P118E mean on a 2018 Chevrolet Silverado?
The P118E code indicates an issue with the Exhaust Gas Temperature Sensor 1, specifically a performance problem when the engine is running.
What are the common symptoms of code P118E in a 2018 Chevrolet Silverado?
Symptoms may include the check engine light turning on, decreased fuel efficiency, reduced engine performance, or unusual exhaust smells.
What causes the P118E code to appear?
Common causes include a faulty exhaust gas temperature sensor, wiring issues, sensor circuit problems, or excessive soot buildup on the sensor.
Can I continue driving with the P118E code on my 2018 Chevrolet Silverado?
While the vehicle may still run, continued driving with this code can lead to reduced performance or potential damage to the exhaust system or catalytic converter.
How do I diagnose the P118E code on my Silverado?
Diagnosis involves checking the exhaust gas temperature sensor, inspecting the wiring and connectors, and using a scan tool to monitor sensor values.
How do I fix the P118E code on a 2018 Chevrolet Silverado?
Repairs may include replacing the faulty exhaust gas temperature sensor, cleaning soot buildup, or repairing damaged wiring or connectors.
What tools are needed to address the P118E code?
You’ll typically need a diagnostic scan tool, a multimeter for testing circuits, and basic hand tools to replace the sensor if necessary.
How much does it cost to repair the P118E code?
The repair cost can range from $100 to $300, depending on whether the sensor needs replacing or wiring repairs are required.
Can a faulty exhaust gas temperature sensor affect emissions?
Yes, a malfunctioning sensor can lead to improper exhaust gas regulation, potentially increasing emissions and causing the vehicle to fail an emissions test.
Is the P118E code covered under warranty for a 2018 Chevrolet Silverado?
It may be covered under the emissions warranty, but you should check with your dealership or review your warranty terms.
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