P0151 2014 GMC Sierra Code - HO2S Circuit Low Voltage Bank 2 Sensor 1
Quick Answer
The P0151 diagnostic trouble code (DTC) for a 2014 GMC Sierra refers to an issue with the HO2S (Heated Oxygen Sensor) Circuit Low Voltage on Bank 2 Sensor 1. Common causes include Faulty oxygen sensor, Wiring or connector issues, Exhaust leaks near the sensor. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0151 2014 GMC Sierra indicates HO2S Circuit Low Voltage Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty oxygen sensor, Wiring or connector issues, Exhaust leaks near the sensor.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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 P0151 2014 GMC Sierra Description
The P0151 diagnostic trouble code (DTC) for a 2014 GMC Sierra refers to an issue with the HO2S (Heated Oxygen Sensor) Circuit Low Voltage on Bank 2 Sensor 1. This sensor is responsible for monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. When the voltage from the sensor is lower than expected, it triggers the P0151 code.
Common Causes of P0151 2014 GMC Sierra
- Faulty oxygen sensor
- Wiring or connector issues
- Exhaust leaks near the sensor
- ECM malfunction
- Fuel system problems
Symptoms of P0151 2014 GMC Sierra
- Decreased fuel efficiency
- Rough idling or stalling
- Check Engine Light illuminated
- Poor acceleration or engine performance
- Failed emissions test
How to Fix P0151 2014 GMC Sierra
- Begin by diagnosing the specific cause of the low voltage reading, which may involve testing the oxygen sensor, inspecting the wiring, and checking for exhaust leaks.
- Replace the Bank 2 Sensor 1 oxygen sensor if it is found to be faulty.
- Repair any damaged wiring or connectors and ensure proper connections.
- Address any exhaust leaks near the sensor to prevent false readings.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0151 2014 GMC Sierra
The cost of repairing a P0151 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the price range for parts such as an oxygen sensor can be between $50 and $200, while labor costs can range from $100 to $300. Overall, the total repair cost could fall between $150 and $500. It's important to note that these estimates are rough averages and actual costs may vary based on factors such as location, vehicle make and model, and the repair shop's labor rates. It is recommended to obtain quotes from local auto repair shops for a more accurate estimate.
Tech Notes for P0151 2014 GMC Sierra
Need more information about the P0151 2014 GMC Sierra code?
Need more information on how to fix the P0151 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0151 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0151 2014 GMC Sierra Code
No Frequently Asked Questions about P0151 2014 GMC Sierra Code found.
Discuss the causes and fixes for P0151 2014 GMC Sierra OBDII Code
Code P0151 2014 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.