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Engine-Codes – GMC – P0267 GMC

P0267 GMC Code - Cylinder 3 Injector Control Circuit Low Voltage

Quick Answer

The P0267 GMC code indicates a problem with the control circuit for the fuel injector in cylinder 3 of the vehicle's engine. Common causes include Faulty fuel injector in cylinder 3, Wiring or connector issues in the injector control circuit, ECU (Engine Control Unit) malfunction. 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
P0267 GMC indicates Cylinder 3 Injector Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector in cylinder 3, Wiring or connector issues in the injector control circuit, ECU (Engine Control Unit) malfunction.
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 Aug 25, 2024
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Code P0267 GMC Description

The P0267 GMC code indicates a problem with the control circuit for the fuel injector in cylinder 3 of the vehicle's engine. This means that the voltage level in the circuit is lower than the expected range, which can lead to issues with fuel delivery and combustion in that specific cylinder. This can result in poor engine performance, decreased fuel efficiency, and potential damage to the engine over time.

OBDII Code P0267 GMC - Cylinder 3 Injector Control Circuit Low Voltage
P0267 GMC Code - Cylinder 3 Injector Control Circuit Low Voltage

Common Causes of P0267 GMC

  1. Faulty fuel injector in cylinder 3
  2. Wiring or connector issues in the injector control circuit
  3. ECU (Engine Control Unit) malfunction
  4. Fuel delivery problems
  5. Electrical issues such as a short circuit or corrosion

Symptoms of P0267 GMC

  1. Rough idle or misfiring engine
  2. Decreased power and acceleration
  3. Poor fuel economy
  4. Engine stalling or hesitation
  5. Check Engine Light illuminated on the dashboard

How to Fix P0267 GMC

  1. Diagnose the specific cause of the low voltage in the injector control circuit using a multimeter and other diagnostic tools.
  2. Inspect the wiring and connectors for any damage or corrosion, and repair or replace as needed.
  3. Test the fuel injector in cylinder 3 for proper operation and replace if faulty.
  4. Check the ECU for any malfunctions and reprogram if necessary.
  5. Clear the error code from the ECU and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0267 GMC

The typical repair costs for addressing a P0267 GMC code can range from $150 to $500, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates can vary between auto repair shops, so it's recommended to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0267 GMC

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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Information for Specific GMC Models

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 P0267 GMC Code

1. What does the OBDII code P0267 mean on a GMC vehicle?

P0267 indicates that the Engine Control Module (ECM) has detected a low voltage condition in the injector control circuit for cylinder 3.

2. What are the common symptoms of a P0267 code?

Symptoms may include rough idling, misfires, reduced engine performance, poor fuel efficiency, and the Check Engine Light turning on.

3. What causes the P0267 code to appear?

Common causes include a faulty fuel injector, damaged or corroded wiring in the injector circuit, a malfunctioning ECM, or a poor electrical connection.

4. Can I drive my GMC with a P0267 code?

Driving with a P0267 code is not recommended, as it can lead to poor engine performance, potential engine damage, and increased emissions.

5. How do I diagnose the P0267 code on my GMC?

Start by inspecting the wiring and connectors for cylinder 3’s injector, then test the injector itself and the voltage signals from the ECM.

6. How can I fix the P0267 code on a GMC vehicle?

Potential fixes include repairing or replacing damaged wiring, cleaning or replacing the injector, or replacing the ECM if it’s faulty.

7. How much does it cost to repair a P0267 code?

Repair costs can vary from $100 to $500 or more, depending on whether the issue is with the wiring, injector, or ECM.

8. Can a dirty fuel injector cause the P0267 code?

Yes, a clogged or dirty fuel injector can restrict fuel flow and lead to low voltage conditions in the injector circuit.

9. Could a bad ECM trigger the P0267 code?

Yes, a malfunctioning ECM can fail to send the correct voltage signals to the injector, causing the P0267 code.

10. What tools are needed to troubleshoot a P0267 code?

You’ll typically need an OBDII scanner, a multimeter, and possibly a noid light to test the injector circuit and diagnose the issue.

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