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General Information





P2022 Intake Manifold Runner Valve Position Sensor Circuit High

General Information

Component Location





General Description

The Variable Charge Motion Actuator (VCMA) is used to adjust a valve (flap) in the intake runner for each cylinder. The valve does not close off the runner but restricts in such a way as to cause turbulence (swirl) in the air fuel mixture. The turbulence in the air will reduce emissions under cold start condition. The valve is operated by a worm gear type driver which doesn't open for limp home mode in the case of loss of current supply. (It doesn't have a return spring). The system also has a Valve Position Sensor (VPS) to supply a feedback of the valve position to the PCM.

DTC Description

If the Valve Position Sensor (VPS) voltage is greater than the specified range; PCM determines that a fault exists and a P2022 DTC is stored.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data








Fig 1) Normal data & waveform of VCM position sensor (OPEN)
Fig 2) Normal data & waveform of VCM position sensor (CLOSE)