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  2. Mass flow sensor - Wikipedia

    en.wikipedia.org/wiki/Mass_flow_sensor

    MAF sensor in a 2006-2015 automotive diesel engine. A mass (air) flow sensor (MAF) is a sensor used to determine the mass flow rate 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 ...

  3. MAP sensor - Wikipedia

    en.wikipedia.org/wiki/MAP_sensor

    A fuel-injected engine may alternatively use a mass airflow sensor (MAF sensor) to detect the intake airflow. A typical naturally aspirated engine configuration employs one or the other, whereas forced induction engines typically use both; a MAF sensor on the Cold Air Intake leading to the turbo and a MAP sensor on the intake tract post- turbo ...

  4. MAFless Tuning - Wikipedia

    en.wikipedia.org/wiki/MAFless_Tuning

    This requires the use of an alternative method of calculating airflow into the engine, which is also referred to as 'Speed-Density' system, as opposed to a MAF system. On vehicles so equipped, this alternative involves the use of a manifold absolute pressure, or MAP, sensor. The MAP sensor measures pressure in the engine's inlet manifold.

  5. MAF - Wikipedia

    en.wikipedia.org/wiki/MAF

    Mass airflow sensor, used to find the mass flowrate of air entering a fuel-injected internal combustion engine; MAFless Tuning, a method of operating the fuel injection system on a gasoline-powered motor vehicle whereby the mass airflow meter is removed; Markranstädter Automobilfabrik, a German car-brand built from 1909 to 1923 in Markranstädt

  6. Crankshaft position sensor - Wikipedia

    en.wikipedia.org/wiki/Crankshaft_position_sensor

    The functional objective for the crankshaft position sensor is to determine the position and/or rotational speed of the crank. Engine Control Units use the information transmitted by the sensor to control parameters such as ignition timing and fuel injection timing. In a diesel, the sensor will control the fuel injection.

  7. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    [citation needed] Volvo had a light labeled "lambda", lambda sond being another name for oxygen sensor. This was done in order to remind the driver to change the oxygen sensor. Some American-built 1973–1976 Chrysler Corporation vehicles had a similar odometer-triggered reminder: "Check EGR", which was reset after service at a Chrysler dealership.

  8. Throttle - Wikipedia

    en.wikipedia.org/wiki/Throttle

    The throttle body is usually located between the air filter box and the intake manifold, and it is usually attached to, or near, the mass airflow sensor. Often, an engine coolant line also runs through it in order for the engine to draw intake air at a certain temperature (the engine's current coolant temperature, which the ECU senses through ...

  9. Air flow meter - Wikipedia

    en.wikipedia.org/wiki/Air_flow_meter

    Typically, mass air flow measurements are expressed in the units of kilograms per second (kg/s) or feet per minute (fpm), which can be converted to volume measurements of cubic metres per second (cumecs) [1] or cubic feet per minute (cfm). [2]