The First Community Bank of Moultrie County Sullivan branch is located at 503 S Hamilton, Sullivan, IL 61951. Get hours, reviews, customer service phone number and driving directions.
What Does a Mass Air flow Sensor Do? Your mass air flow sensor or âMAFâ detects the volume of air as it enters your engine by heating up a thin wire or resistor. The computer in your car then measures electrical resistance through the MAF as the air flowing through the sensor cools its components down. With a firm understanding of how much air is flowing into your engine, the computer can then direct fuel injectors to add more or less gasoline to the air/fuel mixture.
1 Mass flow sensor, or mass airflow (MAF) sensor, used to tell the ECU the mass of air entering the engine. 2  Oxygen sensor, used to monitor the amount of oxygen in the exhaust. 3  Throttle position sensor, used to monitor the position of the throttle in an internal combustion engine.