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Engine-Codes – GMC – P0276 2014 GMC Sierra

P0276 2014 GMC Sierra Code - Cylinder 6 Injector Control Circuit Low Voltage

Quick Answer

The diagnostic trouble code P0276 for a 2014 GMC Sierra indicates an issue with the Cylinder 6 Injector Control Circuit experiencing low voltage. Common causes include Faulty fuel injector for cylinder 6, Wiring issues in the injector control circuit, Malfunctioning engine control module (ECM). 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
P0276 2014 GMC Sierra indicates Cylinder 6 Injector Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector for cylinder 6, Wiring issues in the injector control circuit, Malfunctioning engine control module (ECM).
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 13, 2024
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Code P0276 2014 GMC Sierra Description

The diagnostic trouble code P0276 for a 2014 GMC Sierra indicates an issue with the Cylinder 6 Injector Control Circuit experiencing low voltage. This means that the fuel injector for cylinder 6 is not receiving the proper amount of voltage to function correctly. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber for efficient engine operation. When the voltage is too low, it can lead to poor fuel delivery, affecting the engine's performance and overall efficiency.

OBDII Code P0276 2014 GMC Sierra - Cylinder 6 Injector Control Circuit Low Voltage
P0276 2014 GMC Sierra Code - Cylinder 6 Injector Control Circuit Low Voltage

Common Causes of P0276 2014 GMC Sierra

  1. Faulty fuel injector for cylinder 6
  2. Wiring issues in the injector control circuit
  3. Malfunctioning engine control module (ECM)
  4. Poor connection in the circuit
  5. Corrosion or damage to electrical components

Symptoms of P0276 2014 GMC Sierra

  1. Engine misfires or rough idling
  2. Decreased fuel efficiency
  3. Engine hesitation or lack of power
  4. Check Engine Light illuminated on the dashboard
  5. Engine stalling or difficulty starting

How to Fix P0276 2014 GMC Sierra

  1. Begin by conducting a thorough inspection of the injector control circuit, checking for any visible damage or loose connections.
  2. Test the fuel injector for cylinder 6 to determine if it is functioning properly or needs replacement.
  3. Use a multimeter to measure the voltage in the injector control circuit to identify any abnormalities.
  4. If necessary, replace the faulty fuel injector, repair any damaged wiring, or replace the engine control module.
  5. Clear the diagnostic trouble codes from the vehicle's computer and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0276 2014 GMC Sierra

The typical repair costs for addressing a Cylinder 6 Injector Control Circuit Low Voltage issue can vary depending on the specific cause of the problem. In general, the cost of replacing a fuel injector can range from $150 to $300 per injector, not including labor costs. Wiring repairs or ECM replacement can add to the total repair bill. Labor rates at auto repair shops typically range from $80 to $150 per hour, but rates may vary based on location and the shop's expertise. It's advisable to consult with a professional mechanic for a more accurate cost estimate based on the specific diagnosis and repair needed for your 2014 GMC Sierra.

What does this mean?

Tech Notes for P0276 2014 GMC Sierra

A clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

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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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