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: Description and Operation
Description System Overview The System offers the following features: - Human / machine interface through a 1-stage button, for terminal switching and engine start. - Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition swit ...

Hyundai Elantra AD (2016-2020) Service Manual: General Safety Information and Caution
General Safety Information and Caution Be careful when driving the vehicle using the smart cruise control system as follows. • The smart cruise control system may have limits to detect distance to the vehicle ahead due to road and traffic conditions. • On curve ...