The MAF sensor,  works with the engine computer to set the fuel curve and give readings to the engine computer. It measures the pressure in the turbocharger system. If yours is faulty, it may cause improper running, rich or lean fuel curves, or other general performance issues. Replace yours with this unit to keep your engine running at full potential. 

Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket.