| Description |

| Engine condition | VIS valve | Operation |
| Medium speed | Closed | Increasing engine performance in low engine speed by reducing intake interference among cylinders |
| Low / High speed | Open | Minimizing intake resistance by shortening intake manifold length and increasing area of air entrance |

CVVT Oil Control Valve (OCV) Repair procedures
Variable Intake Solenoid (VIS) Valve SpecificationsHyundai Tucson (LM) 2010-2015 Service Manual: Compressor Components and Components Location
Components
1. Bolt2. Disc & Hub Assembly 3. Retainer Ring (Pully) 4. Pully5. Retainer Ring (Field coil)6. Field Coil7. Compressor Assembly
...
Hyundai Tucson (LM) 2010-2015 Service Manual: Canister Close Valve (CCV) Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the CCV connector.
3.
Measure resistance between the CCV terminal 1 and 2.
4.
Check that the resistance is within the specification.
Specification: Refer to "Specification"
5.
Disconnect the vapor hose connected with ...