Hyundai Ioniq (AE): Engine Control System / CVVT Oil Control Valve (OCV). Repair procedures
| 1. | Turn the ignition switch OFF. |
| 2. | Disconnect the OCV connector. |
| 3. | Measure resistance between the OCV terminals 1 and 2. |
| 4. | Check that the resistance is within the specification. Specification : Refer to "Specification" |
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[CVVT Oil Control Solenoid (Intake)]
| 1. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 2. | Disconnect the CVVT oil control solenoid (A). |
| 3. | Remove the installation bolt (B), and then remove the CVVT oil control solenoid from the enigne. 
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[CVVT Oil Control Valve (Exhaust)]
| 1. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 2. | Remove the air cleaner assembly (Refer to Engine Mechanical System - "Air Cleaner") |
| 3. | Disconnect the CVVT oil control solenoid (A). |
| 4. | Remove the installation bolt (B), and then remove the CVVT oil control solenoid from the enigne. 
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| Install the component with the specified torques. |
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| Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
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| Apply engine oil to the valve O-ring. |
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| 1. | Install in the reverse order of removal. CVVT Oil control valve installation bolt : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
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Other information:
Inspection1.Turn the ignition switch ON.2.Connect the GDS.3.Emit intensive light toward the photo sensor using a lamp, and check the output voltage change.4.The voltage will rise with higher intensive light and reduce with lower intensive light.1. Auto light signal2.
Inspection1.Check that the voltage values of No. 1, 2 duct sensors change1. Sensor (+ 5V)2. Sensor groundSpecification Ambient temperature [°C (°F)] Resistance (kΩ) Voltage (V) 50 (122)1.
