It’s common for your mass airflow and oxygen sensors to become dirty over time. As more mileage accumulates on your odometer, it’s important that we check these sensors to ensure that they’re working optimally to provide you with efficient fuel mileage and proper acceleration. If either of these parts is experiencing problems, you may notice that a check engine light is illuminated on your dashboard. Addressing a Malfunctioning Throttle Position Sensor Your throttle position sensor is a very important part of your vehicle because it keeps track of the angle of the throttle valve opening in your engine. There is communication that occurs between this part and your engine’s computer to make the proper adjustments. When something isn’t working quite right, there could be an issue with this opening not being where it should be. Acceleration can be affected in many situations such as this.