Minneapolis European Auto Repair

Knowing the functions of a vehicle's mass airflow sensor (MAF) will not only help you better understand how your engine works but will help you identify a faulty air flow sensor. Read on to learn more about the various functions that your mass airflow sensor provides and what can happen if it starts malfunctioning.   A mass airflow sensor calculates the oxygen flowing to your engine for the ideal air-to-fuel ratio. The mass airflow sensor helps to increase engine efficiency by doing so. Most cars use the hot wire principle when it comes to the airflow sensor. It relies on two sensors: one electrically-heated sensing wire and one temperature sensing wire.  The engine throttle opens when you press on the gas, allowing more air to flow around the hot wire. The more air is let in, the more electric current is needed to keep the wire hot. An electronic chip and PCM work with the airflow signal to calculate how much fuel needs to be injected. This measurement helps keep th ... read more