VARIABLE INTAKE-AIR CONTROL OPERATION[ZJ, ZY, Z6]

id0140b1180800

Operation Conditions

When engine speed is less than 4,100 rpm

• The PCM energizes the closed-side circuit of the variable intake air shutter valve actuator, closing the variable intake air system shutter valve to enhance the inertia charging effect in the engine low speed range.

When engine speed is 4,100 rpm or more

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