P116F 2018 GMC Sierra Code - O2 Pump Current Control Circuit High Voltage (NOx Sensor 1)
Quick Answer
The diagnostic trouble code P116F for a 2018 GMC Sierra relates to the O2 Pump Current Control Circuit High Voltage, specifically for NOx Sensor 1. Common causes include Faulty O2 pump current control circuit, Wiring issues or electrical connections related to the circuit, Malfunctioning NOx sensor. 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
- P116F 2018 GMC Sierra indicates O2 Pump Current Control Circuit High Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty O2 pump current control circuit, Wiring issues or electrical connections related to the circuit, Malfunctioning NOx sensor.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P116F 2018 GMC Sierra Description
The diagnostic trouble code P116F for a 2018 GMC Sierra relates to the O2 Pump Current Control Circuit High Voltage, specifically for NOx Sensor 1. This code indicates that there is a problem with the oxygen pump current control circuit, resulting in a higher than normal voltage being detected by the NOx sensor. The NOx sensor is responsible for monitoring nitrogen oxide emissions in the vehicle's exhaust system. When the O2 pump current control circuit is not functioning properly, it can lead to inaccuracies in emissions control and potentially affect the vehicle's overall performance.
Common Causes of P116F 2018 GMC Sierra
- Faulty O2 pump current control circuit
- Wiring issues or electrical connections related to the circuit
- Malfunctioning NOx sensor
- Exhaust system leaks
- Engine running rich or lean
Symptoms of P116F 2018 GMC Sierra
- Check engine light illuminated on the dashboard
- Decreased fuel efficiency
- Rough idling or stalling
- Poor acceleration
- Failed emissions test
How to Fix P116F 2018 GMC Sierra
- Diagnose the specific cause of the high voltage in the O2 pump current control circuit using a diagnostic scanner.
- Inspect and test the wiring and connections related to the circuit for any damage or loose connections.
- Replace the NOx sensor if it is found to be faulty.
- Repair any exhaust system leaks that may be affecting sensor readings.
- Reset the trouble code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P116F 2018 GMC Sierra
The cost of repairing the O2 Pump Current Control Circuit High Voltage issue can vary depending on the specific cause and the parts and labor required. On average, the repair cost for this type of problem can range from $200 to $500. However, it's important to note that labor rates at auto repair shops can vary widely, so it's advisable to check with local shops for a more accurate estimate based on the location, make and model of the vehicle, and the severity of the issue.
Need more information about the P116F 2018 GMC Sierra code?
Need more information on how to fix the P116F 2018 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P116F 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P116F 2018 GMC Sierra Code
1. What does the OBDII code P116F mean on a 2018 GMC Sierra?
The OBDII code P116F indicates an issue with the O2 pump current control circuit, specifically high voltage in the NOx Sensor 1, which monitors emissions and helps manage the air-fuel mixture.
2. What are the common symptoms of the P116F code on a 2018 GMC Sierra?
Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, rough idling, and potential limp mode activation.
3. What causes the P116F code to appear on a 2018 GMC Sierra?
Common causes include a faulty NOx sensor, damaged wiring or connectors in the O2 pump control circuit, a malfunctioning control module, or excessive exhaust contamination.
4. Can I drive my 2018 GMC Sierra with the P116F code?
While the vehicle may remain drivable, it’s not recommended to ignore the code as it can lead to increased emissions, potential engine damage, and reduced performance over time.
5. How do I diagnose the P116F code on a 2018 GMC Sierra?
Diagnosis involves scanning the vehicle with an OBDII scanner, inspecting the NOx sensor and its wiring for damage, testing the sensor’s electrical connections, and checking the exhaust system for contamination or leaks.
6. How do I fix the P116F code on a 2018 GMC Sierra?
Repairs may include replacing the faulty NOx sensor, repairing or replacing damaged wiring or connectors, cleaning or replacing the exhaust components, or updating the engine control module’s software.
7. What is the role of NOx Sensor 1 in a 2018 GMC Sierra?
NOx Sensor 1 measures nitrogen oxide levels in the exhaust to help the engine control module adjust the air-fuel mixture and reduce emissions.
8. How much does it cost to fix the P116F code on a 2018 GMC Sierra?
Repair costs can vary, but replacing a NOx sensor typically ranges from $300 to $700, depending on parts and labor. Additional wiring repairs may increase costs.
9. Can a bad NOx sensor damage my 2018 GMC Sierra’s engine?
While a faulty NOx sensor itself won’t directly damage the engine, prolonged issues with emissions control can lead to engine inefficiencies and potential long-term damage.
10. Will clearing the P116F code solve the problem on my 2018 GMC Sierra?
Simply clearing the code won’t fix the underlying issue. Proper diagnosis and repair are necessary to prevent the code from returning.
Discuss the causes and fixes for P116F 2018 GMC Sierra OBDII Code
Code P116F 2018 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.