P0067 Code: Air Assisted Injector Control Circuit High

An OBD-II code is designed to inform you about potential issues your vehicle may have. To successfully resolve it, you must first know what the logged code means. Read on to learn more about the common triggers and symptoms associated with the code P0067.

What Does the P0067 Code Mean?

Diagnostic trouble code (DTC) P0067 stands for “Air Assisted Injector Control Circuit High.” This error code is logged when the powertrain control module (PCM) in your vehicle detects an incorrect signal from the air assist injector. The code is also set if the PCM perceives a higher voltage than is considered normal within the circuit.

If the PCM perceives a potential issue with the air assisted injector control circuit, particularly a voltage higher than the set threshold, it logs code P0067. Depending on the severity of the problem, other trouble codes may also be stored. Codes P0065 and P0066 are very closely related to P0067.

If you’re planning to diagnose and fix P0067 yourself, make sure to read our technical discussion about air assisted injection systems.

Note: The definition of code P0067 may be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Possible Causes of the P0067 Code?

P0067 is a generic code, so it can have several triggers. Here are the most common:

• A faulty air assist injector solenoid
• Circuit problems
• Faulty PCM

What are the Common Symptoms of the P0067 Code?

You may notice the following symptoms if you drive a vehicle with a stored P0067 trouble code:

• Check engine light is on
• Bad fuel mileage
• Poor engine performance (hard starting, misfiring)

How to Diagnose the P0067 Code

To avoid the possibility of engine damage, code P0067 should be resolved immediately. However, as different issues may set off this code, diagnosis can be tricky. Always follow the recommended diagnostic procedure by your vehicle’s manufacturer. The steps for diagnosing a code P0067 on a Chevy, for instance, may prove different from testing for a code P0067 on a Sigma.

Refer to a repair manual for the appropriate diagnostic strategy. If you’re not familiar with auto repair, it would be best to leave the job to a mechanic.

How to Fix the P0067 Code

Code P0067 may be set in vehicles of varying makes and models. As this is a generic code, it may share similar causes and symptoms with other DTCs. However, there is no one-size-fits-all solution for these codes.

All vehicles are different, so you should always refer to the factory repair information specific to your car before DIY-ing any repairs. However, if you aren’t confident in your automotive repair skills, it may be best to enlist the help of a professional.

Air Assisted Injection

Back around 1990, Toyota developed an air-assisted type two-hole injector to improve fuel atomization and injector spray directions. 

This system was first introduced on Toyota V-6 passenger car engines but later made its way to other Toyota platforms. Air Injection is now used on some GDI systems as well.

The air is injected along with the fuel and the system required development of a special type of idle speed control valve (ISCV) with two air outlet passages. The air-assisted injector system design improves fuel atomization and engine idle speed control during all driving conditions, hot and cold.

The air-assisted injector system design improves fuel atomization and engine idle speed control during all driving conditions, hot and cold.

– Richard McCuistian, ASE Certified Master Automobile Technician

Newer models of air assist injection systems have tighter controls and use solenoids to control airflow. That’s what codes like P0067 is about. Some Subarus, for example, use a solenoid to control Injector Air Assist.

Where to Find an Air Assist Injector Solenoid Replacement for Your Ride

If your vehicle logged a P0067 code because of a faulty air assist injector solenoid, don’t put off replacing it to prevent costly repairs down the line. Thankfully, getting a replacement is a breeze with CarParts.com.

Begin your search for the perfect air assist injector solenoid by filling out our vehicle selector tool. This streamlines your search, presenting only replacement parts that are compatible with your daily driver. After that, use the search filters to view the solenoids that match your preferred brand and price range.

Our selection of air assist injector solenoids includes accurate and detailed fitment information, so you’re sure to get exactly what your car needs to get back on the road. On top of that, we can help you clear the trouble code in no time with our fast and reliable shipping. Order today, and get your new parts in as fast as two business days.

If you have any questions about your order, our dedicated customer service team is ready to assist you at any time via our toll-free hotline.

Browse our selection now and order an air assist injector solenoid replacement today!