Nissan Qashqai J11. Manual - part 267
SYSTEM
ECM-45
< SYSTEM DESCRIPTION >
[MR20DD]
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The camshaft position sensor mounted at the rear of the cylinder head detects a cam position, by using the-
groove on the plate located at the rear of the exhaust camshaft.
Feedback Control
The camshaft position sensor feeds back an actual cam position signal to ECM. Based on the signal, ECM
controls the exhaust valve timing control solenoid valve to satisfy the optimum target valve opening/closing
timing according to a driving condition.
INTAKE MANIFOLD RUNNER CONTROL
INTAKE MANIFOLD RUNNER CONTROL : System Description
INFOID:0000000010702825
System Diagram
SYSTEM DESCRIPTION
The intake manifold runner control valve installed at intake manifold generates swirl flow (revolving flow) in
combustion chamber, and by that effect air-fuel mixture is homogenized so that stabilizes combustion. The
intake manifold runner control valve is driven by DC motor and controlled by ECM.
IDLING, LOW SPEED·SMALL LOAD RANGE
With intake manifold runner control valve closed the flowing field of
swirl flow (revolving flow) is generated by increased flow speed of
gas and improves combustion so that enables stable combustion.
MIDDLE·HIGH SPEED RANGE
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