CONSTRUCTION
This camshaft timing oil control valve assembly controls the spool valve using duty-cycle control from the ECM. This allows hydraulic pressure to be applied to the VVT-i controller (camshaft timing gear assembly) advance or retard side. When the engine is stopped, the camshaft timing oil control valve assembly will move to the retard position.
| *1 | Spring | *2 | Sleeve |
| *3 | Spool Valve | - | - |
| *a | To Camshaft Timing Gear Assembly (Advance Side) | *b | To Camshaft Timing Gear Assembly (Retard Side) |
| *c | Drain | *d | Oil Pressure |