SUCTION CONTROL VALVE [SKYACTIV-D 2.2]

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Purpose, Function

Construction

•  The suction control valve is built into the supply pump.

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•  The suction control valve consists of the valve, valve body, armature, and teflon bushing.

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Operation

Fuel injector (2pin type)

•  The intake amount is determined by the total opening size of the valve as controlled by the duty value of the solenoid actuation current.

•  The duty solenoid can adjust the open and close time ratio to control the intake amount by changing the ON time during a single cycle. For a normally open type suction control valve, making the duty ratio smaller increases the intake amount and, conversely, making the duty value larger decreases the intake amount.

De-energized (open)

•  The solenoid inner port is opened and fuel is sent into the control chamber.

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Energized (closed)

•  The solenoid inner port is closed. Fuel siphoned by the feed pump is returned to the fuel tank through the regulator valve.

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Fuel injector (6pin type)

•  The intake amount controls the solenoid drive current by duty control, and adjusts it by changing the valve opening angle. When the solenoid drive current is small, the intake amount decreases, and when it is large the intake amount increases.

Non-energization (closed)

•  The port in the valve is closed.

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Energization (open)

•  The port in the valve opens and fuel is sent to the high pressure chamber.

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Fail-safe

DTC	Fail-safe
P062A:00	•  Limits the engine torque or the upper limit of the engine speed. •  Inhibits the auto DPF regeneration control. •  Inhibits the compulsory DPF regeneration control. •  Inhibits the EGR control. •  PCM restricts engine-transaxle integration control. (ATX) •  Inhibits engine-stop by operating the i-stop function.