Nissan Note [1613/1872] Ec 1613

Nissan Note [1613/1872] Ec 1613
ENGINE CONTROL SYSTEM
EC-1613
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
The fuel injector opening and closing speed
The needle travel (determined by a constant for the type of fuel injector)
The nominal hydraulic flow of the fuel injector (unique to each fuel injector)
The fuel rail pressure controlled by the ECM
The ECM controls:
The idle speed adjustment
The exhaust gas flow reinjected into the intake manifold
The fuel supply control (advance, flow and fuel rail pressure)
The cooling fan control
The glow plug (pre/post heating) control
The high pressure pump is supplied at low pressure by an integrated low pressure pump (transfer pump).
It supplies the fuel rail whose pressure is controlled for charge by the flow actuator and for discharging by
the fuel injector valves. Falls in pressure can be compensated for in this way. The flow actuator allows the
high pressure pump to provide just the amount of fuel necessary to maintain the pressure in the fuel rail.
Thanks to this element, heat generation is minimized and engine output improved.
In order to discharge the fuel rail using the fuel injector valves, the valves are controlled by short electrical
impulses:
Short enough not to open the fuel injector, (through the return circuit from the fuel injectors)
Long enough to open the valves and discharge the fuel rail
The ECM controls the cooling fans and the engine coolant temperature warning light on the instrument
panel.
IMPORTANT
The engine must not operate with:
Fuel containing more than 10% diester
Gasoline, even in tiny quantities
The system can inject the fuel into the engine at a pressure up to 1400 bars. Before carrying out any work,
check that the fuel rail is not under pressure and that the fuel temperature is not too high.
You must respect the cleaning and safety advice specified in this document for any work on the high pres-
sure injection system.
Removal of the interior of the pump and fuel injectors is prohibited. Only the flow actuator, the fuel pump
temperature sensor and the venturi can be replaced.
For safety reasons, it is strictly forbidden to slacken a high pressure pipe union when the engine is run-
ning.
It is not possible to remove the fuel rail pressure sensor from the fuel rail because this may cause circuit
contamination malfunctions. If the fuel rail pressure sensor fails, the fuel rail pressure sensor, the fuel rail
and the five high pressure pipes must be replaced.
It is strictly forbidden to remove any injection pump pulley marked number 070 575. If the pump is being
replaced, the pulley must be replaced.
It is forbidden to repair the wiring connecting the knock sensor and the crankshaft positon sensor. If the
wiring should malfunction, it has to be replaced with new wiring.
Applying 12V directly to any component in the system is prohibited.
Ultrasonic carbon removal and cleaning are prohibited.
Never start the engine without the battery being connected correctly.
Disconnect the injection system ECM when carrying out any welding work on the vehicle.
It is essential to replace all the disconnected air intake plastic pipes.
Functions Performed
BBS004TK
Function: Fuel supply management (advance, delivery and pressure).
Quantity of fuel injected and regulation of injection advance.
The injection control parameters are the quantities to be injected and their respective advances.
These are calculated by the ECM on the basis of information from the following signals:
Engine speed (crankshaft + cam for synchronisation)
Accelerator pedal position

Содержание