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How to Clean Mass Air Flow Sensor

How to Clean Mass Air Flow Sensor

The air mass information is required by the ECU in order for it to properly balance the engine and provide the appropriate amount of fuel to it. When a vehicle’s mass airflow sensor is broken or damaged, it can result in a range of problems, the most common of which is significantly reduced engine performance and fuel economy.

Disconnect the sensor

Turn off the engine, remove the keys from the ignition, and allow the engine to cool down before starting it again. Consult your owner’s manual to determine where the mass air flow sensor is exactly located. Remove the part from the vehicle’s electrical system by unplugging it successfully.

  • Remove the sensor

Remove the sensor from the circuit and release any clamps or brackets that are keeping it in place. Remove the sensor assembly from the tubing by sliding it away from the boot and carefully removing it from the boot (s).

  • Place the sensor

Placing the sensor on a cloth for cleaning is a good idea. Apply the cleaner to the sensor’s interior with 10-15 blasts around the perimeter of the sensor. Also clean the sides of the part, as well as its housing, connectors, and terminals, before reassembling it. In the event that you have a hot wire mass air flow sensor, make certain that the cleaner does not go on the hot wires or the sensor plate.

  • Remove and reinstall the sensor

Allow for the drying of the sensor.Once the part is complete, you can reinstall it in its original location, replace the clamps/brackets, and tighten them. After you’ve reinstalled the sensor, wait a few minutes before starting the car to ensure that all of the cleaning chemicals have been absorbed by the sensor.

Clean the air flow sensor on regular basis

Changing the air filter and cleaning the sensor at the same time is perfectly safe. If your check engine light illuminates and there is a trouble-code associated with the MAF, it might be wise to clean the sensor at that time. Whenever you have a few minutes to spare, this basic maintenance procedure can be completed in your garage without difficulty

What to Do and How to Do It

  • Identify your air intake system

Every vehicle is unique, so look online or in your repair manual to determine which system is in charge of the air intake. Under the hood of my Ford E250 is a convenient inlet that allows for easy access.

  • The MAF sensor can be found by disassembling your air intake system

The intake consists of a series of tubes, which are normally made of plastic but can also be made of metal.Disconnect the engine filter and check again for MAF sensor, that should be situated somewhere in between the filter as well as the engine. The mass air flow sensor is located directly behind the air filter in my Ford van, and it is easy to access once the air filter has been removed.

  • Remove any debris from the MAF sensor

By pushing the start button, the engine will be started. You should never operate an engine without an air filter under normal circumstances, but for this job, it is acceptable to do so for a short period of time. The engine should resume regular operation around a second or two after each spray.

Ensure that the Mass Airflow Sensor is clean

  • Locate a flat, secure spot where you may park your automobile. Lifting the hood will allow you to remove this black, negative dc cable from the vehicle in a good way.
  •  Find the mass airflow gauge, which can be found on the air filter component, and replace it. By pressing the lock tab on the electrical connector for the sensor, you can unplug it and detach the connector from the harness.
  • The airflow cleaner assembly should be taken apart if you will be unable to completely detach the sensor from of the air cleaner unit. Use a screwdriver or a ratchet and socket to complete the task successfully.
  • To use a pair of pliers, carefully separate this sensor from the air cleaner assembly.
  • Place the sensor on a clean shop towel to keep them clean and free of contamination. Use an electrical goods cleaner or Mass Air Circulation sensor cleaner to spray the detecting elements, then use a soft brush to scrub away dirt as well as other contaminants until the sensor is entirely cleaned.

Cleaning the Mass Air Flow Sensor – Taking Out the Old Sensor

  • locate your Mass Airflow Sensor (MAC)

The exact location will differ depending on your vehicle, but it is usually fairly obvious where it is located. It’s somewhere in the engine’s intake system, but I’m not sure where. On normally aspirated cars, this comes before the throttle body, whereas on turbocharged cars, it comes before the turbo.

The Mass Airflow Sensor must be removed from the intake housing once the piece of the intake housing that contains it has been removed from the intake. Because the wires were entirely black in this instance, it was a surprise that the engine started at all.

  • Ensure that the sensor is clean

Following that, you have two options. Take the bag and shake it around to ensure that all of the dirt and grime has been washed away from the sensor by the alcohol.

  • Reinstall the sensor when it has been dried

Allow at least 20 minutes to pass after cleaning your mass flow sensor either with the cleanser or rubbing alcohol. You can re-use your bulk airflow sensor after it has been thoroughly cleaned. For safety reasons, you must wait until the sensor is totally dry before reinstalling it in your vehicle.