Car Mass Air Flow (MAF) Sensor Testing and diagnose fault
Symptoms of a Bad Mass Air Flow (MAF) Sensor The mass air flow sensor is prone to failure due to age or other factors affecting its performance. Common pollutants like dirt and dust are the major reason behind a failing air flow sensor. However, seeing how it functions all the time when you run your car, it is understandable that the sensor fails sooner rather than later. It is also possible that a voltage surge from the car battery fries the circuit inside the sensor and it is unable to transmit any information to the car’s onboard computer. At the end of the day, it is the ECU which decides what action to take and whether the mass air flow sensor has lost its efficiency. If the ECU suspects any fault, you are notified via a warning light (also called the Check Engine Light), that illuminated in the car’s dash. Other causes of code P0101: MAF sensor or wiring is too close to higher voltage components such as the alternator or ignition wires, which can interfere wi