Your Ford Fiesta MAP sensor is mounted to the admission complex to one side of Your motor sound. The sensor is answerable for keeping the air admission right</br> to work with the planning of the motor. In the event that the sensor isn't working then You will see that the motor runs drowsily</br> or that You are having diminished speed increase. Given sufficient time this will prompt harm and may kill the motor. Another sensor will cost You around 200 bucks</br> yet You should supplant maybe You don't the motor fixes will set you back much more. They are not too difficult to even consider putting on</br> yet You can pay to have it placed on for another 100 bucks.