DTC P2018-00: Intake Manifold Runner Position Sensor/Switch Circuit Intermittent (Bank1): General 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 the combustion chamber of each cylinder by closing the VCM valve in cold start condition.