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Engine-Codes – Subaru – P0067 Subaru

P0067 Subaru Code - Air Assisted Injector Control Circuit or Circuit High

Quick Answer

The P0067 diagnostic trouble code (DTC) for Subaru vehicles refers to an issue with the Air Assisted Injector Control Circuit or Circuit High. Common causes include Faulty air assisted injector control circuit, Damaged wiring harness, Malfunctioning air assisted injector. 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
P0067 Subaru indicates Air Assisted Injector Control Circuit or Circuit High.
Common causes
Common causes include Faulty air assisted injector control circuit, Damaged wiring harness, Malfunctioning air assisted injector.
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 Sep 12, 2024
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Code P0067 Subaru Description

The P0067 diagnostic trouble code (DTC) for Subaru vehicles refers to an issue with the Air Assisted Injector Control Circuit or Circuit High. This code indicates that there is a problem with the circuit that controls the air assisted injector system in the vehicle. The air assisted injector system is responsible for injecting additional air into the exhaust system to help reduce emissions and improve overall engine performance.

OBDII Code P0067 Subaru - Air Assisted Injector Control Circuit or Circuit High
P0067 Subaru Code - Air Assisted Injector Control Circuit or Circuit High

Common Causes of P0067 Subaru

  1. Faulty air assisted injector control circuit
  2. Damaged wiring harness
  3. Malfunctioning air assisted injector
  4. Problem with the engine control module (ECM)

Symptoms of P0067 Subaru

  1. Decreased engine power
  2. Reduced fuel efficiency
  3. Rough idling
  4. Stalling
  5. Failed emissions test

How to Fix P0067 Subaru

  1. Begin by conducting a thorough inspection of the air assisted injector control circuit and wiring harness to check for any visible damage or loose connections.
  2. Test the air assisted injector using a multimeter to determine if it is functioning properly.
  3. Check the engine control module (ECM) for any signs of malfunction or error codes related to the air assisted injector system.
  4. If a specific component is identified as the cause of the issue, replace it with a new, OEM-quality part to ensure proper functionality.
  5. Clear the DTC from the vehicle's memory using an OBD-II scanner and perform a test drive to ensure that the issue has been resolved.

Cost to Fix P0067 Subaru

The typical repair costs for addressing a P0067 code on a Subaru vehicle can vary depending on the specific cause of the issue and the cost of parts and labor. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $80 to $150 per hour. Overall, the total repair cost for this issue may fall between $200 and $600. It is important to note that these estimates are rough averages and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on your specific circumstances.

What does this mean?

Tech Notes for P0067 Subaru

The fault could cause the engine to idle rough and possibly stall. The Air Assist Injector Solenoid Valve is supplied power from the main relay and controlled by the Engine Control Module. The Air Assist Injector Solenoid Valve can be tested by manually applying voltage and ground in order to actuate it. Once the valve is open, the air passages within the valve and system can be checked for obstructions. The Air Assist Injector Solenoid Valve can also be actuated by connecting the green test mode connector located under the instrument panel (On driver' s side, the connector is normally unplugged). Once connected, the Air Assist Injector Solenoid Valve will be turned on and off with the key placed in the on, engine off position. It will continue to turn on and off until the green test mode connector is disconnected.

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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 P0067 Subaru Code

1. What are common symptoms of OBDII code P0067 in a Subaru related to the Air Assisted Injector Control Circuit?

- Common symptoms include poor engine performance, rough idling, reduced fuel efficiency, and potential stalling.

2. What are the possible causes of OBDII code P0067 in a Subaru?

- The code P0067 in a Subaru can be caused by a faulty air assisted injector, damaged wiring or connectors, a defective ECM, or a short circuit in the control circuit.

3. How can I diagnose the OBDII code P0067 in my Subaru?

- Diagnosing code P0067 involves checking the air assisted injector operation, inspecting wiring for damage, testing connectors for proper connection, and using a scan tool to monitor live data.

4. What should I do if I encounter OBDII code P0067 in my Subaru?

- If you encounter code P0067, it is recommended to address the issue promptly to prevent further damage to the engine. Seek professional help if needed.

5. Can I continue driving my Subaru with OBDII code P0067 present?

- It is not advisable to continue driving your Subaru with code P0067 present, as it can lead to further engine issues and potentially cause damage.

6. How can I repair OBDII code P0067 in a Subaru?

- Repairing code P0067 may involve replacing the air assisted injector, repairing or replacing damaged wiring, ensuring proper connector connections, or replacing a faulty ECM.

7. Are there any DIY tips for fixing OBDII code P0067 in a Subaru?

- DIY tips for fixing code P0067 include checking for loose or damaged wiring, cleaning connectors, and ensuring proper installation of a new air assisted injector if needed.

8. Can a bad air filter cause OBDII code P0067 in a Subaru?

- While a dirty air filter may affect engine performance, it is unlikely to directly cause code P0067. The code is more commonly related to issues with the air assisted injector circuit.

9. How long does it typically take to repair OBDII code P0067 in a Subaru?

- The repair time for code P0067 can vary depending on the exact cause of the issue and the expertise of the technician. It may take a few hours to a day to diagnose and fix the problem.

10. Is it possible for OBDII code P0067 to reappear after repair in a Subaru?

- If the root cause of code P0067 is not properly addressed during repair, it is possible for the code to reappear. Ensure thorough diagnostics and repairs are conducted to prevent recurrence.

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