Bosch's extended line of MAF sensors measure the amount of air entering an engine and report that data to the Electronic Control Module (ECM), which adjusts fuel mixture, ignition timing and other parameters accordingly. The expanded line features more than 120 part numbers covering popular vehicles in North America, including domestic, Asian and European models. This coverage helps assure technicians that they can find the OE-quality part they need, quickly and reliably from their regular supplier of Bosch products. This line will include the generation HFM7 MAF sensors. These sensors have the ability to provide either digital or analog input to the vehicle's ECM.