P0081 NISSAN - Intake Valve Control Solenoid Circuit Bank 2
- Intake Valve Control Solenoid Circuit harness is open or shorted
- Intake Valve Control Solenoid Circuit circuit poor electrical connection
Intake valve timing control solenoid valve is activated by ON/OFF pulse duty (ratio) signals from the Engine Control Module (ECM).
The intake valve timing control solenoid valve changes the oil amount and direction of flow through intake valve timing control unit or stops oil flow.
The longer pulse width advances valve angle. The shorter pulse width retards valve angle. When ON and OFF pulse widths become equal, the solenoid valve stops oil pressure flow to fix the intake valve angle at the control position.