Nissan Note [1664/1872] Ec 1664

Nissan Note [1664/1872] Ec 1664
EC-1664
[K9K]
TROUBLE DIAGNOSIS
TEST 6: ECM CHECK
1. CHECK ECM CONNECTOR
Check that the ECM connectors are locked correctly.
Are the connectors poorly locked?
Yes or No
Yes >> Lock the connectors correctly.
No >> Replace the ECM.
TEST 7: HIGH PRESSURE SYSTEM CHECK
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 than 5 seconds.
1. CHECK FUEL PUMP
It is possible to check the high pressure supply pump capacity by carrying out the following procedure:
Turn the ignition switch OFF, disconnect the low pressure actuator from the fuel pump (IMV brown con-
nector) and connect a test adaptor (test IMV).
Disconnect the 4 fuel injectors.
Turn the ignition switch ON, connect CONSULT-II and select “RAIL PRESSURE” in DATA MONITOR
mode.
Apply brake and start engine. The starter will cut out automatically after 5 seconds.
Read RAIL PRESSURE” indication and confirm that maximum value during the test.
Is the rail pressure greater than 1050 bar?
Yes or No
Yes >>GOTO4.
No >> GO TO 2.
2. CHECK FUEL RAIL PRESSURE
Is the rail pressure greater than 900 bar?
Yes or No
Yes >>GOTO3.
No >> GO TO 5.
3. CHECK FUEL RAIL PRESSURE
Repeat the test when cold. Engine coolant temperature = Intake air temperature.
Is the rail pressure greater than 1050 bar?
Yes or No
Yes >>GOTO4.
No >> GO TO 5.
4. CHECK FUEL INJECTOR SEALING
The pump can supply the operating pressure.
Turn the ignition switch OFF and reconnect the 4 fuel injectors and low pressure actuator electrically.
Turn the ignition switch ON, and erase DTCs using the CONSULT-II.
Carry out the trouble diagnosis on the fuel injectors by checking the return volume of the 4 fuel injectors (See
TEST 9 fuel injector sealing check).
>> Repair or replace.

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