Normally a car with MAFS problems will indicate errors, for example, engine cutout, increased fuel consumption, decreased performance and erratic engine operation. However, before you rush to conclusions, you must find out if the above problems are caused by your MAF sensor or not. When the MAF sensor is faulty, the vehicle will exhibit a wide range of performance problems. The sensors or detectors in the MAF device may be contaminated and this will cause all the familiar problems in the car such as stalling, hesitation, rough idle and hard starting. The MAFS will indicate the volume of air supply and when the right mix is obtained, it will activate the engine control unit, thus reducing or cutting the air supply. The intake of air or oxygen has to be controlled so that an appropriate air-to-fuel ratio can be achieved. The car engine needs about 14.8 kg of air or oxygen to burn the fuel.

Inside the sensing unit, there is an electronic circuit and a hot film. Screws are used to firmly attach the sensing unit within the casing.

This case is located between the air pipe and air filter. The MAF sensor consists of a casing which houses the sensing unit. This data is important because it is used by the ECU (engine control unit) to balance and supply the right amount of fuel to the car engine. An MAFS is an instrument that calculates or measures the amount of air or oxygen that enters the car engine.

Sl55 mass air flow sensor problems