Nissan Note [1622/1872] Ec 1622

Nissan Note [1622/1872] Ec 1622
EC-1622
[K9K]
ENGINE CONTROL SYSTEM
Oil Vapour Rebreathing
BBS004TR
CIRCUIT DIAGRAM
A: When there is a low charge, the vacuum in the intake air duct is below the spring set point. The oil
vapours are extensively rebreathed by the vacuum in the intake air duct.
B: When there is a medium or high charge, the pressure in the intake air duct exhausts the valve dia-
phragm, the oil vapours are breathed in small quantities via a calibrated hole.
CHECKING
To ensure the correct operation of the anti-pollution system, the oil vapour rebreathing circuit must be kept
clean and in good condition.
Exhaust Gas Recirculation (EGR)
BBS004TS
CIRCUIT DIAGRAM
1. Cylinder head cover 2. Oil vapour rebreathing duct 3. Oil vapour recirculation valve
4. Air inlet duct 5. Turbocharger
MBIB1480E
1. Engine 2. Air filter unit 3. Air distributor
4. Exhaust manifold 5. EGR volume control valve 6. Turbocharger
7. ECM A. Air inlet B. Exhaust gas outlet
MBIB1481E

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