P1111 Mitsubishi Intake Valve Timing Control Solenoid Valve Circuit Bank 1

P1111 Mitsubishi Intake Valve Timing Control Solenoid Valve Circuit Bank 1

Possible causes

– Faulty Intake Valve Timing Control Solenoid Valve Bank 1
– Intake Valve Timing Control Solenoid Valve Bank 1 harness is open or shorted
– Intake Valve Timing Control Solenoid Valve Bank 1 circuit poor electrical connection

Tech description

Since 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.

What about the obd code?

An improper voltage is sent to the ECM through intake valve timing control solenoid valve.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Possible engine lack/loss of power
– Posssible engine rough idle

P1111 Mitsubishi Description

Intake 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.

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