Q:

Where is the mass airflow sensor located?

A:

Quick Answer

The mass air flow sensor is located right after a car's air filter along the intake pipe before the engine. The sensor helps a car's computer determine how much fuel and spark the engine should be outputting.

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Full Answer

The sensor measures the amount of air coming into the intake pipe using an electrically charged wire. Faulty mass air flow sensors can cause the car to have a rough idle, have bad fuel mileage or cause it to stall. A faulty sensor can sometimes cause a car's check engine light to come on. Regular maintenance through cleaning or replacing the air filter can prevent a faulty sensor.

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