TUCSON(LM) >2010 > G 2.0 DOHC > Fuel System > Engine Control System > Variable Charge Motion Actuator (VCMA) >Description and Operation | ![]() ![]() |
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 effet
reduces emisson gas by increasing air/ fuel
mixture. |