INTAKE SYSTEM > SYSTEM DIAGRAM

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1. The ECM calculates an optimal turbo pressure in accordance with the driving conditions (engine speed, injection volume, atmospheric pressure and engine coolant temperature). It controls the variable nozzle so that the turbo pressure detected by the turbo pressure sensor matches the calculated turbo pressure.
   
2. The turbo pressure (intake manifold pressure) is controlled by the variable nozzle vane located in the turbine area. This nozzle is actuated by the actuator that is directly connected to it. This actuator is actuated by the vacuum pressure that is regulated by the vacuum regulating valve in accordance with signals from the ECM.