INTAKE SHUTTER VALVE [SKYACTIV-D 2.2]
id0116e1708000
Purpose, Function
• The intake air amount is controlled to provide better recirculation of the exhaust gas.
• The intake air amount to the engine is reduced to increase the exhaust gas temperature easily while the DPF is carrying out combustion. Due to this, the particulate matter (PM) collected in the DPF is burned and eliminated.
• The valve is closed to cut the intake air when the engine switch is off to reduce the shock when the engine is turned off.
Construction
• The intake shutter valve is installed to the intake manifold.
• The intake shutter valve consists of the intake shutter valve position sensor, valve shaft, valve, spring, valve gear, mid gear, and DC motor.
Operation
• The DC motor operates according to the signal from the PCM. The driving force is transmitted to the motor gear, mid gear, and shutter gear, which opens/closes the shutter valve.
• The shutter valve opening angle is detected by the throttle position sensor and controlled to an appropriate opening angle according to the feedback.
• If the shutter valve has a malfunction and the DC motor control is disabled, the shutter valve is fully opened by the return spring. Due to this, the air amount necessary to move the vehicle is assured.
Fail-safe
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DTC No.
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Fail-safe function
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P2101:00
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• Inhibits the EGR control.
• Inhibits the diesel particulate filter regeneration control.
• Inhibits engine-stop by operating the i-stop function.
• PCM restricts engine-transaxle integration control.
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P2118:00
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