Hyundai Elantra: Engine Control System / Variable Charge Motion Actuator (VCMA) Description and Operation

Hyundai Elantra AD (2016-2020) Service Manual / Engine Control/Fuel System / Engine Control System / Variable Charge Motion Actuator (VCMA) Description and Operation

Description
The Variable Charge Motion Actuator (VCMA) is installed on the inlet of the intake manifold.
It consists of a DC motor which actuates the VCM valve and a position sensor which detects the position of the VCM valve.
The VCM system tumbles air flow entering into combustion chamber of each cylinder by closing the VCM valve in the cold start conditions.
This tumble effect reduces cold start emissions by improving atomization
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 specific ...

Variable Charge Motion Actuator (VCMA) Components and Components Location
Components 1. Coupling2. Shaft3. Stabilizer O-ring4. Stabilizer5. O-ring6. Insert nut7. Stabilizer Cover8. Valve9. Hole cover ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Rear Glass Defogger Printed Heater Repair procedures
Inspection     • Wrap tin foil around the end of the voltmeter test lead to prevent damaging the heater line. Apply finger pressure on the tin foil, moving the tin foil along the grid line to check for open circuits. 1. Turn on the defogger switch and use a voltme ...

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