P116E 2014 Chevrolet Silverado Code - O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1)
Quick Answer
The P116E diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado refers to an issue with the O2 Pump Current Control Circuit Low Voltage, specifically related to the NOx Sensor 1. Common causes include Faulty Oxygen Pump: A malfunctioning oxygen pump can cause low voltage in the current control circuit, triggering this code, Wiring or Connector Issues: Damaged wiring or connectors in the O2 pump current control circuit can disrupt the flow of current and lead to low voltage readings, Failed NOx Sensor: A faulty NOx sensor can also cause this code to be triggered, as it may not be accurately detecting nitrogen oxide levels in the exhaust. 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 2014 Chevrolet Silverado indicates O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty Oxygen Pump: A malfunctioning oxygen pump can cause low voltage in the current control circuit, triggering this code, Wiring or Connector Issues: Damaged wiring or connectors in the O2 pump current control circuit can disrupt the flow of current and lead to low voltage readings, Failed NOx Sensor: A faulty NOx sensor can also cause this code to be triggered, as it may not be accurately detecting nitrogen oxide levels in the exhaust.
- 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 P116E 2014 Chevrolet Silverado Description
The P116E diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado refers to an issue with the O2 Pump Current Control Circuit Low Voltage, specifically related to the NOx Sensor 1. This code indicates that there is a problem with the circuit that controls the current for the oxygen pump, which is responsible for regulating the amount of oxygen in the exhaust system. The NOx sensor, or nitrogen oxide sensor, plays a crucial role in monitoring and reducing harmful emissions from the vehicle.
Common Causes of P116E 2014 Chevrolet Silverado
- Faulty Oxygen Pump: A malfunctioning oxygen pump can cause low voltage in the current control circuit, triggering this code.
- Wiring or Connector Issues: Damaged wiring or connectors in the O2 pump current control circuit can disrupt the flow of current and lead to low voltage readings.
- Failed NOx Sensor: A faulty NOx sensor can also cause this code to be triggered, as it may not be accurately detecting nitrogen oxide levels in the exhaust.
- Corrosion or Contamination: Corrosion or contamination in the sensor or circuit can interfere with proper current flow and voltage readings.
Symptoms of P116E 2014 Chevrolet Silverado
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Decreased Fuel Efficiency: A malfunctioning O2 pump current control circuit can lead to decreased fuel efficiency as the engine may not be operating at its optimal air-fuel ratio.
- Engine Misfires: The engine may experience misfires or rough idling due to improper oxygen levels in the exhaust system.
- Failed Emissions Test: If the NOx sensor is not functioning correctly, the vehicle may fail emissions tests due to increased nitrogen oxide emissions.
How to Fix P116E 2014 Chevrolet Silverado
- Diagnose the Issue: Use a diagnostic scanner to retrieve the specific DTC and pinpoint the exact cause of the problem.
- Inspect Wiring and Connectors: Check the wiring and connectors in the O2 pump current control circuit for any damage or corrosion, and repair or replace as needed.
- Test Oxygen Pump: Test the oxygen pump to ensure it is functioning correctly and replace if necessary.
- Replace NOx Sensor: If the NOx sensor is found to be faulty, replace it with a new sensor to restore proper emissions control.
- Clear Codes and Test Drive: Clear the DTC from the vehicle's computer, and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P116E 2014 Chevrolet Silverado
The typical repair costs for addressing a P116E code on a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing a faulty oxygen pump or NOx sensor can range from $200 to $500, including parts and labor. However, additional costs may be incurred if wiring or connectors need to be repaired or replaced. It is important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive pricing. For a more accurate estimate, it is recommended to consult with local auto repair shops.
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Frequently Asked Questions about P116E 2014 Chevrolet Silverado Code
What does the OBDII code P116E mean for a 2014 Chevrolet Silverado?
The P116E code indicates an issue with the O2 Pump Current Control Circuit Low Voltage for NOx Sensor 1, which affects emissions monitoring.
What are the common symptoms of code P116E?
Symptoms may include a check engine light, reduced fuel efficiency, poor engine performance, and possible difficulty passing emissions tests.
What causes the P116E code to appear?
Common causes include a faulty NOx sensor, damaged wiring or connectors in the O2 pump circuit, or a malfunctioning ECM.
Can driving with code P116E damage my vehicle?
Driving with this code may lead to increased emissions and reduced engine efficiency, but immediate damage is unlikely unless left unresolved for an extended period.
How do I diagnose the P116E code on my Silverado?
Diagnosis involves checking the NOx sensor, inspecting circuit wiring and connectors for damage, and testing the ECM for proper functionality.
How do I fix the P116E code?
Repairs may include replacing the NOx sensor, repairing or replacing damaged wiring, and reprogramming or replacing the ECM if necessary.
How much does it cost to repair code P116E?
Repair costs vary but may range from $200 to $600 depending on whether the NOx sensor, wiring, or ECM needs replacement.
Can a bad NOx sensor cause other issues in my Silverado?
Yes, a bad NOx sensor can lead to inaccurate fuel-air mixture adjustments, higher emissions, and reduced engine performance.
Is code P116E related to emissions compliance?
Yes, the P116E code directly impacts emissions monitoring and may prevent your vehicle from passing an emissions test.
Can I clear the P116E code without fixing the issue?
Clearing the code without addressing the problem may temporarily remove the check engine light, but the issue will likely reappear.
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