PLEASE READ ALL THIS INFO.
MAKE SURE THE ENGINE OIL IS CLEAN AND CHANGED AT PROPER INTERVALS
P0011 NISSAN - Intake Valve Timing Control Performance Bank 1
Symptoms
- Engine Light ON (or
Service Engine Soon Warning Light)
- Possible engine lack/loss of power
- Posssible engine rough idle
Possible causes
- Harness or connectors
- Intake valve timing control
solenoid valve circuit is open or shorted
- Intake valve timing control solenoid valve may be faulty
-
Crankshaft position sensor (POS) may be faulty
- Camshaft position sensor
Tech notes
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.
When is the code detected?
When
there is a gap between angle of target and phase-control angle degree,
the valve will stop working and the ECM will trigger the P0011 code.
P0011 NISSAN Description
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve.
The
ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant temperature. Then, the
ECM sends ON/OFF pulse duty signals to the intake
valve timing control solenoid valve
depending on driving status. This makes it possible to control the
shut/open timing of the intake valve to increase engine torque in
low/mid speed range and output in high-speed range.
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.
MAKE SURE YOUR OIL IS CLEAN AND CHANGED AT PROPER INTERVALS.
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