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Engine-Codes – GMC – P054F 2016 GMC Sierra

P054F 2016 GMC Sierra Code - Idle Control Fuel Quantity Higher Than Expected

Quick Answer

The diagnostic trouble code P054F for a 2016 GMC Sierra indicates that the Idle Control Fuel Quantity is higher than expected. Common causes include Malfunctioning fuel injector, Faulty fuel pressure regulator, Defective oxygen 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
P054F 2016 GMC Sierra indicates Idle Control Fuel Quantity Higher Than Expected.
Common causes
Common causes include Malfunctioning fuel injector, Faulty fuel pressure regulator, Defective oxygen 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P054F 2016 GMC Sierra Description

The diagnostic trouble code P054F for a 2016 GMC Sierra indicates that the Idle Control Fuel Quantity is higher than expected. This means that the engine control module (ECM) has detected that the amount of fuel being delivered to the engine during idle is greater than what is considered normal. This can lead to a variety of issues with the vehicle's performance and fuel efficiency.

OBDII Code P054F 2016 GMC Sierra - Idle Control Fuel Quantity Higher Than Expected
P054F 2016 GMC Sierra Code - Idle Control Fuel Quantity Higher Than Expected

Common Causes of P054F 2016 GMC Sierra

  1. Malfunctioning fuel injector
  2. Faulty fuel pressure regulator
  3. Defective oxygen sensor
  4. Faulty mass airflow sensor

Symptoms of P054F 2016 GMC Sierra

  1. Rough idling
  2. Decreased fuel efficiency
  3. Engine stalling
  4. Check engine light illuminated

How to Fix P054F 2016 GMC Sierra

  1. Perform a fuel system pressure test to check for abnormalities.
  2. Inspect fuel injectors for leaks or blockages and replace if necessary.
  3. Test oxygen sensor and mass airflow sensor for proper function and replace if faulty.
  4. Clear the diagnostic trouble code and monitor the vehicle for any recurring issues.

Cost to Fix P054F 2016 GMC Sierra

The cost of repairing the idle control fuel quantity issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the repair for this type of issue can range from $200 to $500, including parts and labor. It is important to consult with a qualified mechanic to get an accurate estimate based on your vehicle's make and model. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on location and other factors.

What does this mean?

Tech Notes for P054F 2016 GMC Sierra

Contaminated or improper fuel quality may cause this DTC to set.

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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.

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