Nissan Note [1666/1872] Ec 1666

Nissan Note [1666/1872] Ec 1666
EC-1666
[K9K]
TROUBLE DIAGNOSIS
Once the cycle is complete, perform “HIGH PRESS CIRC LEAK T” in ACTIVE TEST mode again for the
correct reading of the return volume of each fuel injector.
At the end of both cycles, the return volume of each fuel injector should be 35 ml at maximum. If the return
volume of one of the fuel injectors is above 35 ml, replace the suspected fuel injector.
Disconnect the 4 transparent pipes and reconnect the fuel injector return circuit.
Watch out for any objects (tools, etc.) at the sides of the engine housing during the four cycles (vibrations pos-
sible).
TEST 10: FUEL INJECTOR RETURN FLOW IN STARTING PHASE
NOTE:
Certain malfunctions make it impossible to carry out this test, deal with them first.
It is useless and dangerous to engage the starter motor for more that 5 seconds.
In the event the engine does not start, only the static leak can be measured, that is the leak with the fuel injec-
tor closed, inactive and not subject to any high pressure.
Make sure that the starting circuit is working correctly (minimum speed 200 rpm).
Tooling required:
It is essential to use four transparent pipes with an internal diameter of 4 mm and approximately 50 cm
long.
A test adapter (TEST IMV)
PROCEDURE:
1. Turn ignition switch OFF.
2. Disconnect the four fuel injector return pipes.
3. Fit a plug in the pump venturi tube to prevent the low-pressure circuit from depriming.
4. Connect the four transparent pipes with an internal diameter of 4 mm and a length of approximately 50
cm.
5. Disconnect the low pressure actuator from the pressure (brown IMV connector) and connect the test
adapter (test IMV).
6. Electrically disconnect the 4 fuel injectors.
7. Turn ignition switch ON, apply brake and start engine. The starter cuts in automatically after 5 seconds.
8. Measure the amount of fuel in each pipe.
Replace the fuel injector(s) whose leak return is greater than 10 cm.
Disconnect the four transparent fuel pipes and reconnect the fuel injector return circuit.
Disconnect the test IMV and reconnect the low pressure actuator to the pump.
TEST 11: FUEL FILTER CHECK
1. CEHCK FUEL FILTER
Check the conformity of the fuel filter.
Is the fuel filter correct?
Yes or No
Yes >>GOTO2.
No >> Replace the fuel filter with an original part.
2. CHECK FUEL FILTER
Turn ignition switch OFF, analyses the fuel in the fuel filter.
Disconnect the fuel supply and return hoses from the fuel filter.
Block the fuel filter inlets and outlets straight away with appropriate plugs.
Remove the fuel filter from its holder and shake it well, keeping the caps in place and empty the contents
of the fuel filter into a glass container by lifting up a protective cap and undoing the bleed screw.
Can you see at the bottom of the container a deposit of black particles?
Yes or No
Yes >>GOTO3.
No >> Fuel filter correct.

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