Engine-CodesGMC – P0201 2017 GMC Sierra

P0201 2017 GMC Sierra Code - Cylinder 1 Injector Control Circuit

Quick Answer

The P0201 code in a 2017 GMC Sierra indicates an issue with the control circuit for the fuel injector in cylinder 1. Common causes include Wiring harness issues, Faulty fuel injector in cylinder 1, Poor connection or corrosion in the 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
P0201 2017 GMC Sierra indicates Cylinder 1 Injector Control Circuit.
Common causes
Common causes include Wiring harness issues, Faulty fuel injector in cylinder 1, Poor connection or corrosion in the 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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0201 2017 GMC Sierra Description

The P0201 code in a 2017 GMC Sierra indicates an issue with the control circuit for the fuel injector in cylinder 1. The fuel injector is responsible for delivering the right amount of fuel into the combustion chamber at the correct time. When this circuit malfunctions, it can lead to a variety of performance issues in the vehicle.

OBDII Code P0201 2017 GMC Sierra - Cylinder 1 Injector Control Circuit
P0201 2017 GMC Sierra Code - Cylinder 1 Injector Control Circuit

Common Causes of P0201 2017 GMC Sierra

  1. Wiring harness issues.
  2. Faulty fuel injector in cylinder 1.
  3. Poor connection or corrosion in the circuit.
  4. ECM failure.
  5. Short circuit in the injector control circuit.

Symptoms of P0201 2017 GMC Sierra

  1. Check Engine light is illuminated.
  2. Rough idling or engine misfires.
  3. Poor fuel economy.
  4. Hesitation or lack of power during acceleration.
  5. Engine stalling.

How to Fix P0201 2017 GMC Sierra

  1. Begin by diagnosing the issue using a scan tool to confirm the P0201 code and determine the root cause.
  2. Inspect the wiring harness for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the fuel injector in cylinder 1 to check for proper operation. Replace if faulty.
  4. Check the connection between the fuel injector and the ECM for any issues. Repair or replace as necessary.
  5. Clear the code from the ECM memory and road test the vehicle to ensure the problem has been resolved.

Cost to Fix P0201 2017 GMC Sierra

The cost of repairing the Cylinder 1 Injector Control Circuit issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. In general, replacing a fuel injector or repairing wiring harness issues can range from $150 to $500, while diagnosing the problem and labor costs can add an additional $100 to $300. It's advisable to consult with a mechanic or dealership for a more accurate estimate based on your location and vehicle model.

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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 P0201 2017 GMC Sierra Code

1. What does the OBDII code P0201 mean on a 2017 GMC Sierra?

P0201 indicates an issue in the injector control circuit for cylinder 1, meaning the engine control module (ECM) has detected a fault in the electrical or mechanical operation of the fuel injector.

2. What are the common symptoms of code P0201 in a 2017 GMC Sierra?

Symptoms include rough idling, reduced engine performance, misfires, decreased fuel efficiency, and the check engine light turning on.

3. What causes the P0201 code to appear on a 2017 GMC Sierra?

Possible causes include a faulty cylinder 1 fuel injector, damaged wiring or connectors in the injector circuit, a malfunctioning ECM, or excessive carbon buildup in the injector.

4. Can I drive my 2017 GMC Sierra with a P0201 code?

Driving with a P0201 code is not recommended, as it may cause further engine damage, reduced performance, and increased fuel consumption.

5. How do I diagnose a P0201 code on a 2017 GMC Sierra?

Diagnosis involves checking the injector wiring and connectors for damage, testing the fuel injector’s resistance, inspecting for ECM faults, and using a scan tool to monitor live data.

6. How do I fix a P0201 code on a 2017 GMC Sierra?

Repairs may include replacing the cylinder 1 fuel injector, repairing or replacing damaged wiring or connectors, cleaning the injector, or reprogramming or replacing the ECM.

7. What tools are needed to troubleshoot a P0201 code on a 2017 GMC Sierra?

You may need a multimeter, a scan tool capable of reading live data, and basic hand tools for inspecting and replacing components.

8. How much does it cost to repair a P0201 code on a 2017 GMC Sierra?

Repair costs vary but typically range from $100 to $300 for injector replacement, plus additional costs if wiring or ECM repairs are needed.

9. Can a clogged fuel injector cause the P0201 code?

Yes, a clogged or partially blocked fuel injector can cause insufficient fuel delivery, triggering the P0201 code.

10. Will clearing the P0201 code solve the problem on a 2017 GMC Sierra?

Clearing the code without addressing the underlying issue will not solve the problem, and the code is likely to reappear.

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