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Engine-Codes – GMC – P0264 2014 GMC Sierra

P0264 2014 GMC Sierra Code - Cylinder 2 Injector Control Circuit Low Voltage

Quick Answer

The P0264 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the Cylinder 2 Injector Control Circuit experiencing low voltage. Common causes include Faulty fuel injector for cylinder 2, Wiring issues in the injector control circuit, Problem with the 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
P0264 2014 GMC Sierra indicates Cylinder 2 Injector Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector for cylinder 2, Wiring issues in the injector control circuit, Problem with the 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 17, 2024
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Code P0264 2014 GMC Sierra Description

The P0264 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the Cylinder 2 Injector Control Circuit experiencing low voltage. This code is specifically related to the fuel injector for cylinder 2 in the engine. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber at the right time for optimal performance. When the control circuit for this injector is detecting low voltage, it can lead to various issues with the engine's operation.

OBDII Code P0264 2014 GMC Sierra - Cylinder 2 Injector Control Circuit Low Voltage
P0264 2014 GMC Sierra Code - Cylinder 2 Injector Control Circuit Low Voltage

Common Causes of P0264 2014 GMC Sierra

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

Symptoms of P0264 2014 GMC Sierra

  1. Engine misfires or rough idling
  2. Decreased fuel efficiency
  3. Engine hesitation or lack of power
  4. Illumination of the check engine light
  5. Engine stalling or difficulty starting

How to Fix P0264 2014 GMC Sierra

  1. Begin by diagnosing the specific cause of the low voltage in the Cylinder 2 Injector Control Circuit using a diagnostic scanner to retrieve the trouble codes and perform further testing.
  2. Inspect the wiring harness and connectors for any signs of damage, corrosion, or loose connections. Repair or replace any faulty components as needed.
  3. Test the fuel injector for cylinder 2 to ensure it is functioning correctly. Replace the injector if it is found to be faulty.
  4. Check the engine control module (ECM) for any issues that may be affecting the injector control circuit. Repair or replace the ECM if necessary.
  5. Clear the trouble codes from the vehicle's memory using the diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0264 2014 GMC Sierra

The typical repair costs for addressing a Cylinder 2 Injector Control Circuit Low Voltage issue can vary depending on the specific cause of the problem and the extent of the repairs needed. 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 overall cost. 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 is 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 P0264 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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