P1111 Audi 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
– 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
– Possible engine lack/loss of power
– Posssible engine rough idle
P1111 Audi 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.
Audi Vehicle:Audi A1,Audi A3,Audi A1,Audi A3,Audi A1,Audi A3,Audi A4,Audi A5,Audi Q3,Audi A5,Audi Q5,Audi A3,Audi A4,Audi A5,Audi TT,Audi Q3,Audi Q5,Audi S3,Audi TTS,Audi RS 3,Audi TT RS,Audi A7,Audi Q7,Audi A8,Audi A6,Audi S4,Audi S5,Audi Q5,Audi S6,Audi S8,Audi S5,Audi A8,Audi R8 V8,Audi RS 5,Audi S6,Audi R8 V10,Audi R8 GT,Audi A8L