MAF sensor clean
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Subaru MAF sensor clean
Does My Subaru Need A MAF Sensor Clean?
A Subaru MAF sensor is situated between the air filter and the intake manifold and uses wires to determine how much air is flowing. It does this by reading how much energy is required to keep one of the wires hot, as air passes. When the Subaru engine is idling there is less airflow so less energy is needed to keep the wire hot and when there is high airflow, more energy is used to maintain heat in the wire.
If the Subaru MAF sensor fails and it can’t measure the airflow correctly, the incorrect amount of fuel will be delivered to the injectors. As shown above, this can impact the drivability of the Subaru and long term can cause engine damage. Subaru engines don’t like to run lean or rich. It’s good to practise to have the MAF sensor cleaned as part of regular maintenance or when issues arise, for reliability, performance and Subaru engine longevity.
The cost to clean a MAF sensor will depend on the location of the sensor in the Subaru and how long the job takes, it might cost around $40 - $100 and if the sensor is damaged or faulty you will need to get it replaced, which will be an additional cost.
