VARIABLE INTAKE-AIR SYSTEM (VIS)

id014000180900

Outline

• The function of the VIS is the same as that of the current Mazda6 (GG, GY) L3 engine models, except for the following:

- Output devices

- Operation conditions

Operation

Operation conditions

• When the engine speed is less than 4,100 rpm, the PCM activates the circuit on the close-side of the VIS shutter valve actuator and closes the VIS shutter valve, thus enhancing the inertia charging effect at low or middle engine speeds.

• When the engine speed is 4,100 rpm or more, the PCM activates the circuit on the open-side of the VIS shutter valve actuator, and opens the VIS shutter valve, thus enhancing the inertia charging effect at high engine speeds.