I hane a check engine light by P0660 what I have.

Generic OBD Error Code Details for P0660
Intake Manifold Tuning Valve Control Circuit/Open
What does this mean?
OBD Code P0660refers to
The Intake Manifold Tuning Valve (IMTV) system is monitored for failure during continuous, key ON engine OFF or key ON engine running self-test. The test fails when the signal on the monitor pin is more or less than an the expected calibrated range
Symptoms
Possible sumptoms of OBD code P0660
- Engine Light ON (or Service Engine Soon Warning Light)
Causes
Possible causes of OBD code P0660
- IMTV signal circuit open, shorted to power or ground. - Damaged IMTV actuator. - Damaged PCM. The Error code is generally activated on detection of the following conditions: The ECM has detected an improper signal from the IMTV

I would be getting a dealer to look into this fault.