Engine-CodesGMC – P0204 2014 GMC Sierra

P0204 2014 GMC Sierra Code - Cylinder 4 Injector Control Circuit

Quick Answer

The P0204 diagnostic trouble code (DTC) for a 2014 GMC Sierra specifically refers to an issue with the Cylinder 4 Injector Control Circuit. Common causes include Faulty fuel injector for cylinder 4, Wiring issues in the injector control circuit, Poor electrical connection to the fuel injector. 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
P0204 2014 GMC Sierra indicates Cylinder 4 Injector Control Circuit.
Common causes
Common causes include Faulty fuel injector for cylinder 4, Wiring issues in the injector control circuit, Poor electrical connection to the fuel injector.
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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P0204 2014 GMC Sierra Description

The P0204 diagnostic trouble code (DTC) for a 2014 GMC Sierra specifically refers to an issue with the Cylinder 4 Injector Control Circuit. This code indicates that there is a malfunction in the control circuit of the fuel injector for cylinder 4. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber at the right time. When the control circuit for this injector is not functioning properly, it can lead to a variety of performance issues in the vehicle.

OBDII Code P0204 2014 GMC Sierra - Cylinder 4 Injector Control Circuit
P0204 2014 GMC Sierra Code - Cylinder 4 Injector Control Circuit

Common Causes of P0204 2014 GMC Sierra

  1. Faulty fuel injector for cylinder 4
  2. Wiring issues in the injector control circuit
  3. Poor electrical connection to the fuel injector
  4. Clogged fuel injector
  5. ECM malfunction

Symptoms of P0204 2014 GMC Sierra

  1. Rough idling or engine misfires
  2. Decreased fuel efficiency
  3. Engine stalling or difficulty starting
  4. Loss of power or acceleration
  5. Check Engine Light illuminated on the dashboard

How to Fix P0204 2014 GMC Sierra

  1. Begin by conducting a thorough inspection of the fuel injector for cylinder 4 and the surrounding wiring. Check for any visible damage or loose connections.
  2. Use a multimeter to test the resistance of the fuel injector to determine if it is functioning within the manufacturer's specifications.
  3. Inspect the injector control circuit for any signs of damage or corrosion. Repair or replace any damaged wiring as needed.
  4. Clear the DTC from the vehicle's computer using a diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, consider replacing the fuel injector for cylinder 4 or consulting a professional mechanic for further diagnosis.

Cost to Fix P0204 2014 GMC Sierra

The cost of repairing a Cylinder 4 Injector Control Circuit issue can vary depending on the specific cause of the problem and the labor rates in your area. Typically, the cost of replacing a fuel injector can range from $150 to $300 per injector, not including labor costs. The total repair cost, including parts and labor, could range from $200 to $500 or more. It's important to obtain a detailed estimate from a reputable auto repair shop to determine the exact cost for your vehicle. Keep in mind that labor rates can vary, so it's advisable to check with local shops for accurate pricing.

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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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