СИСТЕМА ECD


  1. FUNCTION


    1. Based on information from various sensors, the ECM determines the injection timing and injection volume according to the engine condition, operates the fuel injectors and controls the fuel injection.

      A01KVJ6E03

    2. The types of fuel injection are as follows:

      Fuel Injection Type Purpose
      Pre-injection Reduces combustion noise by gradually starting fuel combustion for the main injection.
      Main Injection Optimizes combustion by using optimal fuel injection.
      Post-injection

      • Activates the oxidation catalyst.

      • Regenerates the Diesel Particulate Filter (DPF) catalyst.
      A01KVMHC01
      *a Nozzle Needle Stroke (mm) *b Time (ms)
      *c Pre-injection *d Main Injection
      *e Post-injection *f Acoustic Optimization
      *g Combustion Optimization *h Exhaust Re-treatment

      Tech Tips

      When replacing the following parts, it is necessary to reset the learned values of the ECM. For details of the reset procedure, refer to the Repair Manual.


      • Intake Mass Air Flow Meter Sub-assembly

      • Injector Assembly

      • Fuel Pressure Sensor