Petrol Engines Engine
Intake-Air System
• The intake-air system has been basically carried over from the previous engines. It
comprises:
– VTCS (Variable Tumble Control System) (L8, LF, L3)
– VIS (Variable Intake-air System) (LF, L3)
– VAD (Variable Air Duct) (L3)
• All petrol engines now use an electronic throttle control.
• For the LF engine the VIS has been carried over from the L3 engine.
M6FL_01004
1 Air cleaner 8 VIS shutter valve actuator (LF, L3)
2 Accelerator pedal 9 Throttle body
3 VAD solenoid valve (L3) 10 VAD check valve (one-way) (L3)
4 VAD shutter valve (L3) 11 Intake manifold
5 Resonance chamber 12 VIS solenoid valve (LF, L3)
6 VAD vacuum chamber (L3) 13 VTCS solenoid valve
7 VTCS shutter valve actuator
01-4 Service Training Mazda6 Facelift
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