Variable Induction System: Description and Operation

Intake Air (IA) Bypass Control System
When the engine is running, the Intake Air (IA) Bypass control valve sends air to the injectors.




Intake Manifold Runner Control System
Satisfactory power performance is achieved by closing and opening the Intake Manifold Runner Control valve. High torque at low engine speed is achieved when the valves are closed, whereas high power at high engine speed is achieved when the valves are opened.