2001 NISSAN ALMERA TINO Service Repair Manual

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Page 473 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual OVERALL INSPECTION SEQUENENLEC0592S01
SEF104XA
*: Refer to EC-57.
BASIC SERVICE PROCEDUREQG18DE
Preparation (Contd)
EC-48

Page 474 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Inspection ProcedureNLEC0593
1 INSPECTION START
1. Visually check the following:
+Air cleaner clogging
+Hoses and ducts for leaks
+EGR valve operation
+Electrical connectors
+Gasket
+Throttle valve an

Page 475 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual 3 CHECK IGNITION TIMING
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed for about

Page 476 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual 5 CHECK TARGET IDLE SPEED
With CONSULT-II
1. Turn off engine and connect throttle position sensor harness connector.
2. Start engine and make sure that electrical load switches are ªOFFº.
3. Rev eng

Page 477 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual 8 CHECK HEATED OXYGEN SENSOR 1 (FRONT) SIGNAL
With CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. See ªHO2S1 MNTR (B1)º in ªDATA MONITORº mode.
3. Running engine

Page 478 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual 10 CHECK HEATED OXYGEN SENSOR 1 (FRONT) SIGNAL
With CONSULT-II
1. Stop engine.
2. Replace heated oxygen sensor 1 (front).
3. Start engine and warm it up to normal operating temperature.
4. Run engine

10 CHECK HEATED OXYGEN SENSOR 1 (FRONT) SIGNAL
With CONSULT-II
1. Stop engine.
2. Replace heated oxygen sensor 1 (front).
3. Start engine and warm it up to normal operating temperature.
4. Run engine at approx. 2,000 rpm for approx. 2 minutes under no-load.
5. See ªHO2S1 MNTR (B1)º in ªDATA MONITORº mode.
6. Running engine at 2,000 rpm under no-load (engine is warmed up to normal operating temperature.), check that the
monitor fluctuates between ªLEANº and ªRICHº more than 5 times during 10 seconds.
1 time: RICH®LEAN®RICH
2 times: RICH®LEAN®RICH®LEAN®RICH
Without CONSULT-II
1. Stop engine.
2. Replace heated oxygen sensor 1 (front).
3. Set ªHeated oxygen sensor 1 monitor (front)º in the Diagnostic Test Mode II. Refer to EC-73.
4. Run engine at about 2,000 rpm for about 2 minutes under no-load.
5. Maintain engine at 2,000 rpm under no-load and check that MI goes on more than five times within 10 seconds.
OK or NG
OK©INSPECTION END
NG©GO TO 11.
11 DETECT MALFUNCTIONING PART
Check the following.
1. Check fuel pressure regulator. Refer to EC-44.
2. Check mass air flow sensor and its circuit. Refer to EC-154.
3. Check injector and its circuit. Refer to EC-494.
Clean or replace if necessary.
4. Check engine coolant temperature sensor and its circuit. Refer to EC-169.
5. Check ECM function by substituting another known-good ECM.
(ECM may be the cause of a problem, but this is rarely the case.)
©GO TO 3.
12 CHECK HEATED OXYGEN SENSOR 1 (FRONT) HARNESS
1. Turn off engine and disconnect battery ground cable.
2. Disconnect ECM harness connector.
3. Disconnect heated oxygen sensor 1 (front) harness connector.
4. Check harness continuity between ECM terminal 62 and heated oxygen sensor 1 (front) harness connector terminal 1.
Refer to Wiring Diagram, EC-184.
Continuity should exist.
OK or NG
OK©GO TO 14.
NG©GO TO 13.
13 REPAIR OR REPLACE
Repair or replace harness between ECM and heated oxygen sensor 1 (front).
©GO TO 5.
BASIC SERVICE PROCEDUREQG18DE
Inspection Procedure (Cont'd)
EC-53

Page 479 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual 14 PREPARATION FOR ªCOº % CHECK
With CONSULT-II
1. Reconnect ECM harness connector.
2. Turn ignition switch ªONº.
3. Select ªCOOLANT TEMPº in ªACTIVE TESTº mode.
4. Set ªCOOLANT TEMPº to 5É

Page 480 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual 15 CHECK ªCOº %
1. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
SEF090Y
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load,

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