Engine Variable Valve Timing Oil Solenoid (OCV) ⚙️

This component is a key part of the engine’s VVT/CVVT system. It is needed to control oil flow to the camshaft phaser, so the engine can adjust valve timing on the fly. That means smoother idle, better low-end torque, cleaner emissions, and improved fuel economy.

How it works ?️

The ECU sends an electrical signal to the solenoid. Inside, a precision spool valve opens and closes oil passages using engine oil pressure. By increasing or reducing oil flow to the cam gear actuator, the cam timing advances or retards exactly as the ECU requests.

Symptoms when failing ?

If the valve sticks (often from dirty oil),leaks internally, or the coil goes weak, timing control becomes unstable. You may notice rough idle, hesitation, loss of power, higher fuel use, hard starting, ticking noises, or a check engine light (common VVT correlation codes). If ignored, it can cause poor combustion and extra stress on the timing system.

Compatible models ✅

• Hb20
• Creta
• Reina
• I30
• Grand I10
• Accent
• Accent/Verna
• Verna
• Eon
• I10
• I20
• Venue
• Venu
• Kauai
• Kona
• Accent/Solaris
• I20/Bayon
• Atos