Mass Air Floor Sensor

A mass air flow sensor maf is a sensor used to determine the mass flow rate of air entering a fuel injected internal combustion engine.

Mass air floor sensor.

The part costs from 89 to 380. Symptoms of a bad mass air flow sensor include decreased fuel economy starting trouble stalling shortly after starting rough idling and jerking during acceleration. It s a fairly simple job. A faulty maf sensor can cause your vehicle to run too rich or run too lean.

When a vehicle s mass airflow sensor is faulty or defective it can cause a variety of problems and usually results. Code p0101 means that the signal from the. There are several designs of maf sensors but the most common by far is the hot wire maf sensor. The air mass information is necessary for the ecu to correctly balance and deliver the correct amount of fuel to the engine.

Common pollutants like dirt and dust are the major reason behind a failing air flow sensor. The air mass information is necessary for the engine control unit ecu to balance and deliver the correct fuel mass to the engine. The mass air flow sensor is prone to failure due to age or other factors affecting its performance. You ll notice if the tailpipes eject black smoke or when the engine runs rough or backfires.

If a sensor is dirty your mechanic may suggest cleaning it cleaning the airflow sensor is a. The mass air flow sensor must be cleaned and the air filter must be reinstalled correctly or replaced. If the air flow sensor is bad it needs to be replaced. Air flow sensor replacement.

If your check engine light is on and your car has any of these symptoms you can check the maf sensor with an obd ii code reader. In automotive applications air density varies with the ambient. A mass airflow sensor mas determines the mass of air entering a vehicle s fuel injection engine and passes that data to the engine control unit or ecu. The pcm uses this input to calculate engine load.

The mass air flow maf sensor part of your vehicle s electronic fuel injection system is responsible for calculating the total amount of air entering the engine. This information is then used by the ecu to calculate the amount of fuel needed for the correct air fuel mixture. A bad mass air flow sensor won t reliably measure the amount of air coming in through the air filter resulting in a delay in the fuel delivery during sudden acceleration and a temporary lack of power. If the mass air flow sensor has failed or needs to be cleaned this can cause especially rich or lean fuel mixtures.

Air changes its density with temperature and pressure. Mass airflow sensors maf have the responsibility of reporting the amount of air entering the engine to the powertrain control module pcm. The mass air flow maf sensor measures the mass flow rate of air entering the engine.