ECD SYSTEM


  1. CONSTRUCTION


    1. The intake mass air flow meter sub-assembly of diesel engine uses precise fuel injection volume control and EGR control to realize clean emission.

    2. This intake mass air flow meter sub-assembly, which is a slot-in type, allows a portion of the intake air to flow through the detection area. By directly measuring the mass and the flow rate of the intake air, the detection precision is improved and the intake air resistance is reduced.

    3. The intake mass air flow meter sub-assembly has a built-in atmospheric temperature sensor.

    4. In the intake mass air flow meter sub-assembly, the output voltage is converted into an output frequency by a frequency conversion circuit and is transmitted to the ECM. By converting the intake mass air flow meter sub-assembly output into frequency (frequency range between 250 to 11000 Hz), a more accurate intake air amount value can be gained because the value is then less likely to be affected by the differences between resistance of the individual circuits including the wire harnesses.

      A00XRARC01
      *1 Hot Wire Element *2 Cold Wire Element
      *3 Atmospheric Temperature Sensor - -
      *a Air Flow - -