VARIABLE INTAKE AIR CONTROL OPERATION [ZJ, ZY]

id0140c4176200

With Variable Intake Air System Only

Operation conditions

• If any of the following conditions are met:

― Engine speed is 4,100 rpm or more

― Engine speed is 1,400 to 2,600 rpm and throttle opening angle is the specified value or more

When operation conditions are not met

• The PCM energizes the closed-side circuit of the variable intake air shutter valve actuator, closing the variable intake air shutter valve to enhance the inertia charging effect in the engine low to middle speeds and low load ranges.

When operation conditions are met

• The PCM energizes the open-side circuit of the variable intake air shutter valve actuator, opening the variable intake air shutter valve to enhance the inertia charging effect in the engine high speed and high-load range.