Camshaft Timing Oil Control Valve

The camshaft timing oil control valve controls the spool valve position in accordance with the duty control from the ECM thus allocating the hydraulic pressure that is applied to the VVT-i controller to the advance and the retard side. When the engine is stopped, the camshaft timing oil control valve is in the most retarded state.

To VVT-i Controller To VVT-i Controller (Advance Side) (Retard Side) 1

Sleeve

Spring

To VVT-i Controller To VVT-i Controller (Advance Side) (Retard Side) 1

Sleeve

Spring

Plunger

Drain Drain

Oil Pressure Spool Valve

Plunger

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