AutoCodes – Chevrolet – P118F 2016 Chevrolet Silverado

P118F 2016 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 2 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: P118F 2016 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 2 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 242

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P118F 2016 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 P118F 2016 Chevrolet Silverado - Exhaust Gas Temperature Sensor 2 Performance Engine Running - AutoCodes.com — P118F 2016 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 2 Performance Engine Running

What does this mean?

What are the Possible Causes of the DTC P118F 2016 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 P118F 2016 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 P118F 2016 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 P118F 2016 Chevrolet Silverado code?

Need more information on how to fix the P118F 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P118F 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P118F 2016 Chevrolet Silverado Code

What does OBDII code P118F mean on a 2016 Chevrolet Silverado?

P118F indicates an issue with Exhaust Gas Temperature Sensor 2, specifically its performance while the engine is running.

What are the symptoms of code P118F in a 2016 Chevrolet Silverado?

Common symptoms include an illuminated check engine light, reduced engine performance, and potential issues with emissions control or fuel efficiency.

What causes the P118F code to appear?

The code can be triggered by a faulty exhaust gas temperature sensor, damaged wiring or connectors, soot buildup on the sensor, or issues with the vehicle's exhaust or emissions system.

Can I drive my 2016 Chevrolet Silverado with the P118F code?

While it may be possible to drive the vehicle, it is not recommended, as ignoring the issue could lead to increased emissions, reduced fuel efficiency, and potential damage to the exhaust system.

How do I diagnose the P118F code?

Start by inspecting the wiring and connectors for the Exhaust Gas Temperature Sensor 2, checking for corrosion, damage, or loose connections. Use a scan tool to monitor sensor readings and compare them to expected values.

How do I fix the P118F code on a 2016 Chevrolet Silverado?

Repairs may include replacing the faulty exhaust gas temperature sensor, cleaning soot buildup, repairing damaged wiring, or updating the vehicle's engine control module (ECM software) if needed.

How much does it cost to fix the P118F code?

The repair cost varies, but replacing the exhaust gas temperature sensor typically costs $100 to $300, including parts and labor. Additional repairs could increase the total cost.

Can a dirty or clogged exhaust cause the P118F code?

Yes, excessive soot or blockages in the exhaust system can affect sensor readings and trigger the P118F code.

What tools are needed to troubleshoot the P118F code?

Common tools include an OBDII scan tool, a multimeter for testing electrical connections, and basic hand tools for sensor removal and inspection.

Does the P118F code affect emissions testing?

Yes, the P118F code can cause your vehicle to fail an emissions test due to improper exhaust gas temperature readings and potential increased emissions.