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Engine Fault Code P0267

Cylinder 3 Injector Circuit Low

Care Engine Code Reader
The Engine Fault Code P0267 refers to a problem with the injector circuit for cylinder 3. Specifically, it means that the engine control module (ECM) has detected a low voltage or a problem in the circuit related to the fuel injector for that cylinder. This can lead to poor engine performance, misfires, or increased emissions.

Here are some possible causes for this code:

1. Faulty Injector: The injector itself may be damaged or malfunctioning.
2. Wiring Issues: There could be damaged or corroded wiring or connectors leading to the injector.
3. ECM Problems: The engine control module might be malfunctioning or not sending the correct signals.
4. Fuel Supply Issues: Low fuel pressure or a clogged fuel filter can also cause injector problems.

While P0267 generally has the same meaning across different manufacturers, there can be slight variations in how its handled or additional codes that may come with it. Here are some manufacturer-specific notes:

– Volkswagen/Audi: Similar issues may be reported under codes like P0266 (Cylinder 2) or P0268 (Cylinder 4) for related injector circuit problems.
Mercedes-Benz: They may also have specific codes for injector issues that relate to their unique diagnostic systems.
– Porsche and Jaguar: These brands may have their own diagnostic codes, but P0267 will typically still relate to the injector circuit issue.

If you encounter this code, it`s best to start with a thorough inspection of the wiring and connectors, check the injector, and ensure the ECM is functioning properly.
The Engine Fault Code P0267 indicates a problem with the injector circuit for cylinder 3. This code can arise from several issues, and while the general causes are similar across manufacturers, there may be some differences based on the vehicle. Here are the main causes:

1. Faulty Injector: The injector for cylinder 3 may be defective or malfunctioning, causing low resistance or an open circuit.

2. Wiring Issues: Damaged or corroded wiring or connectors in the injector circuit can lead to poor electrical connections, resulting in a low signal.

3. ECM Problems: The Engine Control Module (ECM) may have a fault that affects how it controls the injector circuit.

4. Fuel Supply Issues: If there is a problem with fuel pressure or delivery to cylinder 3, it can trigger this code.

5. Ground Issues: A poor ground connection for the injector circuit can cause low voltage readings.

6. Short Circuit: A short to ground in the wiring can lead to low voltage and trigger the code.

Manufacturer-Specific Differences

Porsche: In some Porsche models, the issue might also be linked to the fuel pump or fuel pressure regulator affecting injector performance.

Mini: Mini vehicles may have additional issues related to the fuel rail pressure sensor, which can affect injector operation.

Mercedes: For Mercedes, the code might also indicate a problem with the ignition system, as misfires can affect injector performance.

Audi: Audi models might require checking the specific control module for the engine, as they can have unique coding or programming issues.

Jaguar: In Jaguars, the issue could be related to the complex wiring harness, which is known for wear and tear.

Land Rover: For Land Rover, the terrain response system can sometimes interfere with engine performance, leading to injector circuit issues.

When diagnosing this code, it`s essential to check the specific vehicle`s service manual for any manufacturer-related quirks or additional tests that may be necessary.
The Engine Fault Code P0267 indicates a problem with the injector circuit for cylinder 3, specifically that the circuit is low. This can happen in various European cars like Porsche, Mini, Mercedes, Audi, Jaguar, and Land Rover. Heres how to troubleshoot and fix this issue:

General Steps to Fix P0267:

1. Check the Code: Use an OBD-II scanner to confirm the P0267 code and check for any other related codes. This helps understand if there are multiple issues.

2. Visual Inspection:
– Wiring and Connectors: Look for damaged wires or loose connections in the injector circuit for cylinder 3. Ensure that the connector is clean and securely attached.
– Injector Condition: Inspect the injector itself for any signs of damage or leaks.

3. Test the Injector:
– Resistance Test: Disconnect the injector connector and use a multimeter to measure the resistance. The typical range is usually between 12 to 16 ohms (check the specific vehicle manual for exact values). If its out of this range, the injector may need replacing.
– Power Test: With the ignition on (but the engine off), check the voltage at the injector connector. You should see battery voltage. If not, the problem might be upstream.

4. Check the Engine Control Unit (ECU):
– If the wiring and injector are fine, the issue could be with the ECU. You may need to reprogram or replace the ECU, but this is less common.

5. Inspect the Fuel Supply:
– Ensure theres adequate fuel pressure. A failing fuel pump or clogged fuel filter can affect injector operation.

6. Clear the Code: After making repairs, clear the fault code with the scanner and take the vehicle for a test drive to see if the code returns.

Manufacturer-Specific Considerations:

1. Porsche:
– For some models, check the wiring harness for known issues. Sometimes, harness connectors can corrode, leading to low voltage.

2. Mini:
– Mini vehicles may have specific software updates for the ECU that can resolve injector circuit issues. Check with a dealer for any recalls or updates.

3. Mercedes:
– Mercedes often has complex wiring diagrams. Use the manufacturers service manual for detailed troubleshooting steps.

4. Audi:
– Audi vehicles may have specific injector coding requirements. After replacing an injector, ensure its coded correctly to the ECU.

5. Jaguar:
– Jaguars can have unique fuel delivery systems. Make sure to check the fuel pump and filter as they can impact injector performance.

6. Land Rover:
– For Land Rover, ensure that the battery is in good condition, as low voltage can affect the injector circuit.


Fixing the P0267 code involves checking the injector and its circuit for issues. Each manufacturer may have specific quirks, so always refer to the vehicle`s service manual for the best guidance. If you`re unsure or the problem persists, consider consulting a professional mechanic.
Driving with a P0267 code, which indicates a low injector circuit issue for Cylinder 3, is generally not safe. This code means that the engine control module (ECM) has detected a problem with the fuel injector circuit for that specific cylinder. Heres what you should know:

1. Engine Performance: You may experience rough idling, misfires, or a noticeable loss of power. This can make the car harder to drive safely.

2. Fuel Efficiency: The engine may use more fuel than usual, leading to poor fuel economy.

3. Emissions: A misfiring cylinder can increase harmful emissions, potentially failing an emissions test.

4. Potential Damage: Continuing to drive with this issue could lead to more serious engine damage over time, such as damaging the catalytic converter.

Manufacturer Differences:
Porsche: Driving is not recommended. The engine management system is sensitive, and continued operation can lead to serious issues.

Mini: Similar to Porsche, its best to avoid driving. The engine may go into limp mode, reducing performance.

Mercedes: Mercedes vehicles often have sophisticated engine management systems. Driving could lead to further damage and is not advisable.

Audi: Like others, driving with this code can cause performance issues. Its best to address the problem before driving.

Jaguar: Jaguars can also be affected by this code, leading to performance issues. Avoid driving until fixed.

Land Rover: Driving with a P0267 code is not safe. The engine may struggle, and its better to resolve the issue first.


In all cases, it`s best to have the vehicle checked by a professional mechanic. Ignoring the code can lead to more significant problems and unsafe driving conditions.

OBD Codes Explained

Engine Codes

P is for PowerTrain - Engine and Transmission.

P0 Indicates Generic Powertrain Codes

P0 Codes indicate problems with the powertrain and are common for all vehicles using the OBD-II Standard.

P1 Enhanced Manufacturer Specific Codes

P1 Codes are specific to manufacturers.

Sub-System

The 3rd Digit indicates the Sub-System

1 – Emission Management

2 – Injector Circuit

3 – Ignition

4 – Emission Control

5 – Vehicle Speed and Idle

6 – Computer and Output

7 – Transmission

8 – Transmission

9 – Reserved

0 – Reserved

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