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Engine-Codes – GMC – P0202 2014 GMC Sierra

P0202 2014 GMC Sierra Code - Cylinder 2 Injector Control Circuit

Quick Answer

The diagnostic trouble code P0202 for a 2014 GMC Sierra specifically refers to an issue with the Cylinder 2 Injector Control Circuit. Common causes include Faulty fuel injector for cylinder 2, Wiring issues in the injector control circuit, Poor electrical connection. 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
P0202 2014 GMC Sierra indicates Cylinder 2 Injector Control Circuit.
Common causes
Common causes include Faulty fuel injector for cylinder 2, Wiring issues in the injector control circuit, Poor electrical connection.
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 P0202 2014 GMC Sierra Description

The diagnostic trouble code P0202 for a 2014 GMC Sierra specifically refers to an issue with the Cylinder 2 Injector Control Circuit. This code indicates that there is a malfunction in the control circuit of 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 to ensure proper engine performance. When the control circuit of the fuel injector for cylinder 2 is not functioning correctly, it can lead to a variety of issues that can affect the vehicle's performance and efficiency.

OBDII Code P0202 2014 GMC Sierra - Cylinder 2 Injector Control Circuit
P0202 2014 GMC Sierra Code - Cylinder 2 Injector Control Circuit

Common Causes of P0202 2014 GMC Sierra

  1. Faulty fuel injector for cylinder 2
  2. Wiring issues in the injector control circuit
  3. Poor electrical connection
  4. Malfunctioning engine control module (ECM)
  5. Fuel system problems

Symptoms of P0202 2014 GMC Sierra

  1. Engine misfires
  2. Rough idling
  3. Decreased fuel efficiency
  4. Hesitation or stumbling during acceleration
  5. Illumination of the Check Engine Light

How to Fix P0202 2014 GMC Sierra

  1. Diagnose the issue using a scan tool to confirm the P0202 code and identify the specific cause of the problem.
  2. Inspect the wiring and connections in the injector control circuit for any damage or corrosion. Repair or replace as needed.
  3. Test the fuel injector for cylinder 2 to determine if it is functioning properly. Replace the injector if it is faulty.
  4. Check the engine control module (ECM) for any malfunctions or errors. Repair or replace the ECM if necessary.
  5. Clear the trouble code from the vehicle's computer and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P0202 2014 GMC Sierra

The typical repair costs for addressing the P0202 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue and the necessary repairs. In general, replacing a fuel injector can cost between $150 to $300 per injector, while diagnosing and repairing wiring or electrical issues can range from $100 to $500. The total cost, including parts and labor, can range from $200 to $800 or more. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle.

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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.

Frequently Asked Questions about P0202 2014 GMC Sierra Code

1. What does the OBDII code P0202 mean on a 2014 GMC Sierra?

P0202 indicates a fault in the injector control circuit for cylinder 2, meaning the engine's computer is detecting an issue with the fuel injector's electrical circuit.

2. What are the common symptoms of the P0202 code on a 2014 GMC Sierra?

Symptoms may include a rough idle, misfiring, reduced engine performance, poor fuel economy, and the check engine light being illuminated.

3. What causes the P0202 code on a 2014 GMC Sierra?

Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a bad PCM (Powertrain Control Module), or corrosion in the circuit.

4. Can the P0202 code damage my 2014 GMC Sierra if left unrepaired?

Yes, continued driving with this code can lead to engine misfires, increased emissions, and potential damage to other engine components over time.

5. How do I diagnose the P0202 code on my 2014 GMC Sierra?

Start by inspecting the wiring and connectors for cylinder 2's injector for damage or corrosion. Then, test the injector for proper resistance and use a scan tool to monitor live data.

6. How do I fix the P0202 code on a 2014 GMC Sierra?

Repairs may include replacing the cylinder 2 fuel injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.

7. Can a bad PCM cause the P0202 code on a 2014 GMC Sierra?

Yes, while rare, a faulty PCM can cause this code if it fails to properly control the injector circuit for cylinder 2.

8. How much does it cost to fix the P0202 code on a 2014 GMC Sierra?

Repair costs vary but typically range from $150 to $500, depending on whether the issue is a simple wiring repair or requires replacing the fuel injector or PCM.

9. Can I drive my 2014 GMC Sierra with the P0202 code?

It’s not recommended, as driving with this issue can lead to poor performance, increased emissions, and potential engine damage.

10. How can I prevent the P0202 code from reoccurring on my 2014 GMC Sierra?

Regular maintenance, including inspecting and cleaning fuel injector connections and ensuring the wiring is in good condition, can help prevent this issue.

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