Engine-Codes.com
Engine-Codes – Chevrolet – P116E Chevrolet

P116E Chevrolet Code - O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1)

Quick Answer

The P116E Chevrolet code refers to a fault in the O2 pump current control circuit, specifically indicating low voltage in the NOx Sensor 1. Common causes include Faulty O2 Pump: A malfunctioning O2 pump can lead to low voltage in the circuit, triggering this code, Wiring Issues: Damaged or corroded wiring connections can disrupt the flow of voltage in the circuit, Sensor Malfunction: A defective NOx sensor can cause inaccurate readings and trigger the code. 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
P116E Chevrolet indicates O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1).
Common causes
Common causes include Faulty O2 Pump: A malfunctioning O2 pump can lead to low voltage in the circuit, triggering this code, Wiring Issues: Damaged or corroded wiring connections can disrupt the flow of voltage in the circuit, Sensor Malfunction: A defective NOx sensor can cause inaccurate readings and trigger the code.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P116E Chevrolet Description

The P116E Chevrolet code refers to a fault in the O2 pump current control circuit, specifically indicating low voltage in the NOx Sensor 1. The NOx sensor plays a crucial role in monitoring and controlling the levels of nitrogen oxides in the vehicle's exhaust system. The O2 pump works to supply air to the NOx sensor for accurate readings and adjustments to be made by the engine control module. When the voltage in the circuit is detected to be low, it can lead to inaccurate readings from the sensor, affecting the engine's performance and emissions control system.

OBDII Code P116E Chevrolet - O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1)
P116E Chevrolet Code - O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1)

Common Causes of P116E Chevrolet

  1. Faulty O2 Pump: A malfunctioning O2 pump can lead to low voltage in the circuit, triggering this code.
  2. Wiring Issues: Damaged or corroded wiring connections can disrupt the flow of voltage in the circuit.
  3. Sensor Malfunction: A defective NOx sensor can cause inaccurate readings and trigger the code.
  4. ECM Malfunction: A problem with the engine control module (ECM) can also lead to low voltage in the circuit.
  5. Exhaust System Leaks: Leaks in the exhaust system can affect the performance of the NOx sensor and trigger the code.

Symptoms of P116E Chevrolet

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Decreased Fuel Efficiency: A decrease in fuel efficiency may be noticed due to the engine running inefficiently.
  3. Rough Idle: The engine may experience rough idling or hesitation during acceleration.
  4. Reduced Power: The vehicle may exhibit a lack of power or responsiveness when accelerating.
  5. Increased Emissions: The vehicle may emit higher levels of pollutants due to the faulty NOx sensor readings.

How to Fix P116E Chevrolet

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the fault code and pinpoint the exact cause of the low voltage in the O2 pump current control circuit.
  2. Inspect Wiring: Check the wiring connections for any damage or corrosion, repairing or replacing as necessary.
  3. Test the O2 Pump: Test the O2 pump to ensure it is functioning properly and supplying sufficient air to the NOx sensor.
  4. Replace the NOx Sensor: If the NOx sensor is found to be faulty, replace it with a new sensor and recalibrate as needed.
  5. Clear Codes: Once the repair has been completed, clear the fault code from the ECM memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P116E Chevrolet

The typical repair costs for addressing the P116E Chevrolet code can vary depending on the specific cause of the issue. In general, replacing a faulty NOx sensor can cost between $200 and $500, while addressing wiring issues or replacing the O2 pump may range from $100 to $300. Labor costs at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additional costs for diagnosis time and any necessary parts should also be factored into the overall estimate. It's recommended to obtain quotes from local auto repair shops to get a more accurate cost estimate for this repair.

Need more information about the P116E Chevrolet code?

Need more information on how to fix the P116E Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P116E Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

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 P116E Chevrolet Code

1. What are the common symptoms of OBDII code P116E Chevrolet (O2 Pump Current Control Circuit Low Voltage)?

- Common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of the P116E code in a Chevrolet vehicle?

- The code P116E can be triggered by issues such as a faulty NOx sensor, damaged wiring or connectors, a malfunctioning O2 pump, or a problem with the engine control module (ECM).

3. How can I diagnose the O2 Pump Current Control Circuit Low Voltage issue in my Chevrolet?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific code, checking the NOx sensor and O2 pump for functionality, inspecting wiring and connectors for damage, and testing the ECM.

4. Can I continue driving my Chevrolet with the P116E trouble code?

- It is not recommended to drive with the P116E code present, as it can lead to further damage to the vehicle and potentially cause more serious issues over time.

5. Are there any DIY repair tips for fixing the O2 Pump Current Control Circuit Low Voltage problem?

- DIY repairs may include checking and cleaning the NOx sensor and O2 pump connectors, inspecting wiring for breaks or corrosion, and resetting the ECM to see if the code clears.

6. How much does it typically cost to repair the P116E code in a Chevrolet vehicle?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can a faulty NOx sensor trigger the P116E code in a Chevrolet?

- Yes, a malfunctioning NOx sensor is a common cause of the P116E trouble code, as it can affect the O2 pump current control circuit and lead to low voltage issues.

8. Will resetting the check engine light make the P116E code disappear permanently?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear after some driving cycles.

9. Is it safe to drive my Chevrolet if the P116E code keeps coming back after repairs?

- It is not recommended to drive the vehicle if the P116E code persists after repairs, as it indicates an ongoing issue that needs to be properly addressed to ensure safe operation.

10. How important is it to address the O2 Pump Current Control Circuit Low Voltage problem in a Chevrolet promptly?

- It is essential to address the P116E code promptly to prevent further damage to the vehicle, ensure optimal engine performance, and maintain fuel efficiency.

Discuss the causes and fixes for P116E Chevrolet OBDII Code

Submit a New Comment

Code P116E Chevrolet comments

No comments found for this page.