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AutoCodes – GMC – P0267 GMC

P0267 GMC Code - Cylinder 3 Injector Control Circuit Low Voltage

Quick Answer

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. Common causes include Dirty Fuel Injector 3, Faulty Fuel Injector 3, Plugged Fuel Injector 3. 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 Dirty Fuel Injector 3, Faulty Fuel Injector 3, Plugged Fuel Injector 3.
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.
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Code Popularity 521
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Mar 23, 2024
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Code P0267 GMC Description

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector control circuit is shorted to ground for greater than 2 s.
OBDII Code P0267 GMC - Cylinder 3 Injector Control Circuit Low Voltage - AutoCodes.com
P0267 GMC Code - Cylinder 3 Injector Control Circuit Low Voltage
What does this mean?

What are the Possible Causes of the DTC P0267 GMC?

  • Dirty Fuel Injector 3
  • Faulty Fuel Injector 3
  • Plugged Fuel Injector 3
  • Fuel Injector #3 harness is open or shorted
  • Fuel Injector #3 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0267 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

A clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0267 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0267 GMC code?

Need more information on how to fix the P0267 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0267 GMC code diagnosed by a professional: Find a repair shop in your area

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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