P1111 2005 NISSAN SENTRA - Intake Valve Timing Control Solenoid Valve Circuit Bank 1
Tech notesSince the Intake valve timing control solenoid valve uses oil flow to control timing, dirty oil can cause the valve to stuck open or close. Before replacing the valve, change engine oil and filter and reset engine code.
When is the code detected?An improper voltage is sent to the ECM through intake valve timing control solenoid valve.
P1111 2005 Nissan Sentra DescriptionIntake valve timing control solenoid valve is activated by ON/OFF pulse duty (ratio) signals from the 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.