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P0264 2017 GMC Sierra Code - Cylinder 2 Injector Control Circuit Low Voltage

Quick Answer

The P0264 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically indicates an issue with the Cylinder 2 Injector Control Circuit experiencing low voltage. Common causes include Faulty fuel injector: A malfunctioning fuel injector for cylinder 2 can cause low voltage in the control circuit, Wiring issues: Damaged or corroded wiring connections to the fuel injector can disrupt the flow of electricity, ECM malfunction: A problem with the Engine Control Module can also lead to low voltage in the injector control circuit. 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 2017 GMC Sierra indicates Cylinder 2 Injector Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector: A malfunctioning fuel injector for cylinder 2 can cause low voltage in the control circuit, Wiring issues: Damaged or corroded wiring connections to the fuel injector can disrupt the flow of electricity, ECM malfunction: A problem with the Engine Control Module can also lead to low voltage in the injector control circuit.
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 2017 GMC Sierra Description

The P0264 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically indicates an issue with the Cylinder 2 Injector Control Circuit experiencing low voltage. In a fuel-injected engine like the one found in the GMC Sierra, each cylinder has its own fuel injector responsible for delivering the precise amount of fuel needed for combustion. The injector control circuit is a crucial component that regulates the fuel injection process, ensuring that the correct amount of fuel is delivered at the right time.

OBDII Code P0264 2017 GMC Sierra - Cylinder 2 Injector Control Circuit Low Voltage
P0264 2017 GMC Sierra Code - Cylinder 2 Injector Control Circuit Low Voltage

Common Causes of P0264 2017 GMC Sierra

  1. Faulty fuel injector: A malfunctioning fuel injector for cylinder 2 can cause low voltage in the control circuit.
  2. Wiring issues: Damaged or corroded wiring connections to the fuel injector can disrupt the flow of electricity.
  3. ECM malfunction: A problem with the Engine Control Module can also lead to low voltage in the injector control circuit.
  4. Poor electrical connections: Loose or poor electrical connections can cause voltage drops in the circuit.

Symptoms of P0264 2017 GMC Sierra

  1. Rough idling: The engine may run unevenly or roughly at idle due to improper fuel delivery to cylinder 2.
  2. Misfires: Low voltage to the fuel injector can cause misfires in cylinder 2, leading to a noticeable loss of power and performance.
  3. Decreased fuel efficiency: A malfunctioning injector control circuit can result in poor fuel atomization and combustion, reducing fuel efficiency.
  4. Check Engine Light: The illumination of the Check Engine Light is a common symptom of this code being triggered.

How to Fix P0264 2017 GMC Sierra

  1. Diagnose the issue: Use a scan tool to read the DTC and perform a visual inspection of the injector and wiring.
  2. Test the injector: Check the resistance of the fuel injector to determine if it is functioning properly.
  3. Inspect wiring: Check for any damaged or corroded wiring connections and repair or replace as needed.
  4. Check ECM: Test the Engine Control Module to ensure it is sending the correct signals to the injector.
  5. Clear codes: After making repairs, clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0264 2017 GMC Sierra

The cost of repairing a Cylinder 2 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, while addressing wiring issues or ECM problems may require additional labor costs. Overall, the total repair cost for this issue could range from $200 to $500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0264 2017 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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