airflow sensor

A device in an electronically controlled fuel injection system which detects the amount of air entering the combustion chambers. Continuous injection systems use an airflow sensor plate to measure airflow volume; electronic systems use a vane or flap-type airflow sensor

Dictionary of automotive terms. 2015.

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  • sensor — [1] An electronic detection device that receives and reacts to a signal, such as a change in voltage, temperature or pressure. [2] Material or device which goes through physical change or electronic characteristic change as surrounding conditions …   Dictionary of automotive terms

  • sensor flap — A part of an airflow sensor which serves as a measure for the induced air volume; a potentiometer converts sensor flap movement into changes in electrical voltage, a form in which these signals can be evaluated by the fuel injection control unit …   Dictionary of automotive terms

  • Mass flow sensor — A mass airflow sensor. A mass air flow sensor is used to find out the mass flowrate 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… …   Wikipedia

  • mass airflow meter — (MAF) device for measuring the mass flow of air into an engine. Also see airflow sensor hot wire airflow meter …   Dictionary of automotive terms

  • MAP sensor — The examples and descriptions in this article apply strictly to four stroke cycle gasoline engines. Other engine types such as diesel, or two stroke cycle can differ in the exact implementation, but the general theme still applies. The manifold… …   Wikipedia

  • air mass sensor — an airflow meter that uses the changing resistance of a heated wire in the intake airstream to measure the mass of the air being drawn into the engine. Also referred to as a hot wire sensor …   Dictionary of automotive terms

  • vane air temperature sensor — (VAT) located inside the vane airflow meter housing; sense the temperature of the air flowing into the engine …   Dictionary of automotive terms

  • Fuel injection — Fuel rail connected to the injectors that are mounted just above the intake manifold on a four cylinder engine. Fuel injection …   Wikipedia

  • Throttle body — In a fuel injection engine, the throttle body is the part of the air intake system that controls the amount of air flowing into the engine, in response to driver input. While the accelerator is often called a gas pedal , it would be more accurate …   Wikipedia

  • Short ram air intake — The short ram air intake is a form of aftermarket air intake for automobiles with internal combustion engines.It basically replaces the OEM air intake with a short metal pipe and air filter inside the engine bay. This can slightly boost… …   Wikipedia

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