Nissan Note [1662/1872] Ec 1662

Nissan Note [1662/1872] Ec 1662
EC-1662
[K9K]
TROUBLE DIAGNOSIS
3. CHECK ECM RELAY
Check that the ECM relay is in working order.
Is the ECM relay working properly?
Yes or No
Yes >>GOTO4.
No >> Replace the relay.
4. CHECK ENGINE GROUND
Test the engine ground.
Is the engine ground correct?
Yes or No
Yes >>GOTO5.
No >> Carry out the required repairs.
5. INSPECTION END
The electrical circuit is OK.
>> INSPECTION END
TEST 3: FUEL INJECTOR CHECK
1. VISUALLY CHECK
Visually inspect the fuel injector wells.
Is there fuel in the fuel injector wells?
Yes or No
Yes >> Fuel injector ice leak, replace the fuel injector.
No >> GO TO 2.
2. PERFORM ACTIVE TEST
Perform “ACTIVE TEST”.
Can you hear the fuel injector valve moving?
Yes or No
Yes >>GOTO3.
No >> Carry out test 11. If test 11 is OK, replace the fuel injector.
3. CHECK RETURN FLOW
Compare the return flow of the four fuel injectors when hot using a measuring cylinder. See TEST 9.
Does one of the four fuel injectors have a greater return flow than the others?
Yes or No
Yes >> Replace the fuel injector with an unusually high return flow (leak at the valve).
No >> GO TO 4.
4. CHECK NO.1 CYLINDER
Disconnect cylinder No. 1 fuel injector.
Is there a noticeable change in engine noise?
Yes or No
Yes >>GOTO5.
No >> Replace fuel injector No.1 with a new part.

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