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Various Types of Mass Air Flow Meters / Sensors / MAFs

As your vehicle continues delivering miles of faithful service, a mass air flow sensor may be on your short list of replacement car parts to purchase at some point. These sensors are critical to the operation of the engine, allowing for the proper adjustment of the engine’s air-fuel mixture. Before you consider replacing your mass air flow sensor, it’s always a good idea to learn about the different designs of sensors that are available for most vehicles. VAF and MAF Mass Air Flow Sensors The average mass air flow sensor comes in different forms, but the two most commonly used are vane meter (VAF) sensors and hot wire (MAF) sensors. VAF sensors utilize a potentiometer attached to a spring loaded flat that directs air flow. The vane moves in proportion to the … Read entire article »

Filed under: Auto parts and repair

Mass Air Flow Sensors/Meters/MAFs in The Cars

Mass Air Flow Sensors/Meters/MAFs in The Cars

A mass air flow sensor is used to find out the mass of air entering a fuel-injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Air changes its density as it expands and contracts with temperature and pressure. In automotive applications, air density varies with the ambient temperature, altitude and use of a turbocharger and this is … Read entire article »

Filed under: Auto parts and repair