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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 ...
It featured a larger MAF sensor body than the ones installed in the Australian cars, to avoid any intake restriction issues and still deliver accurate injection at all times. North American tuners (and also the Australian manufacturers & tuners Holden & HSV) of the LS1 tend to prefer retaining the MAF sensor, instead more simply overcoming ...
One method to avoid this issue is by locating the airflow sensor downstream of the blowoff valve (known as a blow-through setup, as opposed to the traditional draw-through setup). By using a blow-through method, the MAF won't be affected by the blowoff valve opening, since the pressure is vented before the air reaches the MAF.
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 ...
Hyundai told safety regulators the same metal debris problem caused the expanded recall. Near that same time, Kia told NHTSA about a recall of more than 618,000 model year 2011-2014 Kia Optima, 2012-2014 Sorento and 2011-2013 Sportage vehicles because the Theta engine bearings wore out too early and caused the engines to seize. [ 5 ]
Fuel enrichment during cold-start is achieved by altering the timing of the main injectors based on engine temperature. The idle speed is also fully controlled by the digital Motronic unit, including fast-idle during warm-up. Updated variants ML 2.10.1 through 2.5 add MAF Mass Air Flow sensor logic and direct fire ignition coils per cylinder.