P0267 OBD-II Trouble Code: Cylinder Number 3 Injector Circuit High

P0267 code definition

Cylinder Number 3 Injector Circuit High

What the P0267 code means

P0267 is an OBD-II diagnostic trouble code which indicates that the engine control module (ECM) detected the cylinder number 3 injector circuit having a high resistance open circuit, or shorted windings.

What causes the P0267 code?

• The number three cylinder injector circuit has an open somewhere in the circuit from the ECM to the injector.

• The number three injector is open or shorted electrically internally causing the circuit high condition.

• The fuel injector pins are bent or broken in the injector or harness connection to injector three.

• The Injector connector is loose or not making good contact to the injector.

• The ECM or injector control module has an open circuit.

What are the symptoms of the P0267 code?

• The Check Engine Light will be illuminated and the code P0267 will be set in ECM memory and freeze frame.

• The engine will run rough and low on power.

• The engine will have a misfire, causing a buck or jerk and a rough idle.

• The engine may lack some power during acceleration when the misfire is active.

• The engine may stall or have other drivability symptoms related to a misfiring defective injector.

How does a mechanic diagnose the P0267 code?

• Scans codes and documents the freeze frame data in order to verify the problem

• Clears the engine and ETC codes to verify whether the concern comes back

• Runs an injector electrical self test (following the vehicle’s test procedures)

• Disconnects the injector and measures resistances of the injector (following the pinpoint test for the vehicle)

• Disconnects the ECM or injector module and measures the wires’ resistances from the injector connector to the ECM or injector module connector

• Replaces the injector or ECM injector module as needed following the pinpoint tests

Common mistakes when diagnosing the P0267 code?

• Failing to verify whether the code returns after scanning and deleting the code.
• Failing to check the fuel injector resistances before replacing the injector.

How serious is the P0267 code?

• A misfiring cylinder can cause the engine to run lean on the failed cylinder. The ECM or injector module may have an internal failure that may lead to more failures or total loss of all injection control.

What repairs can fix the P0267 code?

• Replacing the injector if it has failed the resistance tests (should be installed with new injector seals)

• Repairing the wiring or connections between the injector and ECM or injector module

• Replacing the ECM or injector module depending on application

Additional comments for consideration regarding the P0267 code

Code P0267 is triggered when the ECM or injector module sees the number 3 injector resistance or milliamp draw is high, due to an open circuit, and turns on the Light and sets the code.

Need help with a P0267 code?

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