Let’s face it, there’s a lot of sensors on your vehicle. The mass airflow or MAF sensor - measures the amount of air entering the engine so it can receive the precise amount of air & fuel to perform properly.We recommend getting your mass airflow sensor cleaned every time you replace your air filter. However, if your car is stalling, hesitating, or you are using more fuel than normal, chances are your mass airflow sensor needs to be replaced. If your mass airflow sensor isn’t working properly, the engine will not know the right amount of fuel to add causing problems including poor gas mileage and lack of power.Replacing the mass airflow sensor is an inexpensive maintenance of the engine system. If you continue to avoid confronting issues with your MAF sensor, this can lead to bigger problems, including damage to your catalytic converter. From a safety standpoint, there is a low safety risk, but your car might not start, and you could end up stranded. However, from an environmental point of view, a bad MAF sensor will waste gas and increase your carbon footprint.