More and more motorists are trying to maintain their cars by themselves. This results in considerable savings because contemporary cars necessitate more and more routine service and are done up of more and more technical components that lead to new breakdowns or inconveniences. One of the problems that disturbs more and more Subaru Legacy owners is a clogged air flow meter, which will end in a loss of power and black exhaust gases. In this article we are going to look at how to clean the mass air flow sensor of your Subaru Legacy? . First, we will explain how your mass airflow sensor works and its advantages, second, why it might be relevant to clean this sensor , and at last, how to clean the mass air flow sensor of a Subaru Legacy .
Utility and action of the mass air flow meter of a Subaru Legacy
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So we start our content page with the procedure and purpose of your Subaru Legacy flowmeter.
The purpose of the mass air flow sensor on Subaru Legacy
The mass air flow sensor is a component that has been developed quite not too long ago and mainly outfitted on diesel models. Obviously, with injection engines, the fuel and air intake has become very precise and it is therefore necessary for the ECU to know the exact volume of air injected into the engine to change the actions of complementary intake parts such as the injection or the EGR valve, if you have problems with the EGR valve on your Subaru Legacy, do not think twice to seek advice from our content page on this subject.
Mass air flow sensor operation on Subaru Legacy
Now, we are going to look at how it works, before trying to clean the mass air flow sensor of your Subaru Legacy , you must already understand how it functions to achieve this routine service action correctly.
The mass air flow sensor is consequently mainly there to obtain info on the air intake of your motor vehicle. To do this, it must be fitted just after the air intake of your Subaru Legacy, i. e. just after the air filter. It is a pipe outfitted with a sensor that will review the air in the intake and transfer the info to the ECU of your car.
Why clean the mass air flow sensor of a Subaru Legacy?
The mass air flow sensor of your Subaru Legacy can have problems and this is what we will try to discover and figure out what problems you might be struggling with!
Mass air flow sensor problems Subaru Legacy
Here are the different problems that the air flow sensor of your Subaru Legacy can provoke:
- higher fuel consumption: Because a dirty flow meter will necessarily end in excessive fuel consumption caused by poor air flow…
- Power loss: Associated with the same issue, this lack of air can provoke a loss of power to your engine.
- Difficulties starting the car: Finally, one of the last traditional problems linked to a dirty flowmeter will be that your Subaru Legacy will have more troubles to start the car.
How do I clean the mass air flow sensor from a Subaru Legacy?
After going over the operation and problems that the flowmeter can provoke, we will look at how to fix these problems by showing to you how to clean the mass air flow sensor of your Subaru Legacy . You should know that this operation is quite basic to conduct and you will not need advanced mechanical skills to do it your self, a good way to avoid a trip to the garage area and a steep bill. See down below the different steps to stick to to conduct this routine service act:
- After having located the mass air flow sensor of your Subaru Legacy , you will have to dismantle it. To do this, action gently, but you will just have to disassemble it on both sides of the air duct and detach the electrical plug on top of it.
- Once disassembled, you will have the ability to proceed to the step cleaning the mass air flow sensor of your Subaru Legacy . This sensor will, as time passes, get dirty and its two “filaments” that will give information to your computer on the quality and temperature of the air will no longer have the ability to collect data correctly, it is in this sense that it will affect the operation of the engine unit of your Subaru Legacy. The purpose of this cleaning will be to remove all its harmful particles to allow it to work efficiently again.
- Let soak the lower section of your mass air flow sensor (not the plug part) in acetone or another solvent for a few minutes , which will remove most of the grime
- Now we’ll proceed to the very delicate cleaning of the flow meter filaments. You have to be very cautious, otherwise your mass air flow sensor will be permanently damaged. With the help of a fine brush and solvent, gently clean the two filaments of your mass air flow sensor . If you are too afraid of damaging it, you can also clean them with a brake fluid in the form of an aerosol by spraying the jet on these filaments.
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Now you know how to clean the mass air flow sensor of your Subaru Legacy , you should feel a noticeable difference in the behavior of your engine unit.
If you need more tutorials on the Subaru Legacy, go to our Subaru Legacy category.
