check engine NISSAN PRIMERA 1999 Electronic Repair Manual

IDiscard old clips; replace with new ones.
10. Install injectors with fuel tube assembly to intake manifold.
IPay extra care to prevent O-rings from being scratched by
sharp edges.
IApply a coat of new engine oil to O-rings before installa-
tion.
11. Tighten fuel tube assembly mounting bolts in numerical
sequence (indicated in the Figure at left) and in two stages.
: Tightening torque N×m (kg-m, ft-lb)
1st stage:
9.4 - 10.7 (0.95 - 1.10, 83 - 95)
2nd stage:
21 - 26 (2.1 - 2.7, 16 - 19)
12. Insert fuel hoses into fuel tubes so that ends of fuel hoses butt
up against fuel tubes; fasten with clamps, avoiding bulges.
ILubricate fuel hoses with a smear of silicone oil.
13. Reinstall any parts removed in reverse order of removal.
CAUTION:
After properly connecting fuel hose to injector and fuel tube
assembly, check connection for fuel leakage.
Fuel tube
O-ring
Spacer
Clip
Injector
Apply engine oil.
SEF195X
SEF196X
BASIC SERVICE PROCEDURESR20DE
Injector (Cont'd)
EC-33

Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment
NCEC0028PREPARATIONNCEC0028S01IMake sure that the following parts are in good order.
a)Battery
b)Ignition system
c)Engine oil and coolant levels
d)Fuses
e)ECM harness connector
f)Vacuum hoses
g)Air intake system
(Oil filler cap, oil level gauge, etc.)
h)Fuel pressure
i)Engine compression
j)Throttle valve
k)EVAP system
IOn models equipped with air conditioner, checks should
be carried out while the air conditioner is ªOFFº.
IWhen checking idle speed on models equipped with CVT,
ignition timing and mixture ratio, checks should be carried
out while shift lever is in ªPº or ªNº position.
IWhen measuring ªCOº percentage, insert probe more
than 40 cm (15.7 in) into tail pipe.
ITurn off headlamps, heater blower, rear window defogger.
IOn vehicles equipped with daytime running light systems,
set lighting switch to the 1st position to light only small
lamps.
IKeep front wheels pointed straight ahead.
IIf engine stops immediately after starting or idle condition
is unstable, perform the following to initialize IACV-AAC
valve:
a)Stop engine and wait 9 seconds.
b)Turn ignition ªONº and wait 1 second.
c)Turn ignition ªOFFº and wait 9 seconds.
IMake the check after the cooling fan has stopped.
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment
EC-34

INSPECTION PROCEDURENCEC0028S02
1 INSPECTION START
1. Visually check the following:
IAir cleaner clogging
IHoses and duct for leaks
IElectrical connectors
IGasket (intake manifold, cylinder head, exhaust system)
IThrottle valve and throttle position sensor operation
2. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
Ensure engine speed stays below 1,000 rpm.
SEF935W3. Open engine hood and run engine at about 2,000 rpm for about 2 minutes under no-load.
4. Perform the Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-SR-61.
SAT652J
OK or NG
OK©IGO TO 2. (With CONSULT-II)
IGO TO 3. (Without CONSULT-II)
NG©1. Repair or replace components as necessary.
2. GO TO 2. (With CONSULT-II)
3. GO TO 3. (Without CONSULT-II)
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont'd)
EC-36

2 CHECK IGNITION TIMING
With CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine two or three times under no-load, then run engine at idle speed for about 1 minute.
SEF978U3. Select ªIGNITION TIMING ADJº in WORK SUPPORT mode.
4. Touch ªSTARTº.
PEF546N5. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
6. Check ignition timing with a timing light.
AEC80415É 2É BTDC
(in ªPº or ªNº position for CVT)
OK©IGO TO 5. (With CONSULT-II)
IGO TO 6. (Without CONSULT-II)
NG©1. Perform ªIdle air volume learningº. Refer to EC-SR-46
2. If still NG, GO TO 4.
BTDC
White painting
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont'd)
EC-37

3 CHECK IGNITION TIMING
Without CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine two or three times under no-load, then run engine at idle speed for about 1 minute.
SEF978U3. Turn off engine and disconnect throttle position sensor harness connector (CVT models only).
SEF197X4. Start engine and rev it (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
5. Check ignition timing with a timing light.
AEC80415É 2É BTDC
(in ªPº or ªNº position for CVT)
OK or NG
OK©GO TO 5.
NG©1. Perform ªIdle air volume learningº. Refer to EC-SR-46.
2. If still NG, GO TO 4.
Throttle position
sensor harness
connector Throttle body
Closed throttle position switch
harness connector (CVT
models)
BTDC
White painting
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont'd)
EC-38

4 ADJUST IGNITION TIMING
With CONSULT-II
1. Adjust ignition timing to the specified value by turning distributor after loosening bolts which secure distributor.
Without CONSULT-II
1. Adjust ignition timing to the specified value by turning distributor after loosening bolts which secure distributor.
2. Turn off engine and connect throttle position sensor harness connector to throttle position sensor. (CVT models only)
SEF197X
Models with CONSULT-II©GO TO 2.
Models without CONSULT-II©GO TO 3.
5 CHECK TARGET IDLE SPEED
With CONSULT-II
1. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
2. Read idle speed in ªDATA MONITORº mode with CONSULT-II.
NEF059A750 50 rpm
(in ªPº or ªNº position for CVT)
OK or NG
OK©GO TO 8.
NG©1. Perform ªIdle air volume learningº. Refer to EC-SR-46.
2. If still NG, GO TO 7.
Throttle position
sensor harness
connector Throttle body
Closed throttle position switch
harness connector (CVT models)
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont'd)
EC-39

6 CHECK TARGET IDLE SPEED
Without CONSULT-II
1. Turn off engine and connect throttle position sensor harness connector (CVT models only).
SEF197X2. Start engine.
3. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
4. Check target idle speed.
750 50 rpm
(in ªPº or ªNº position for CVT)
OK or NG
OK©GO TO 8.
OK (Ignition timing NG)©GO TO 7.
NG©GO TO 7.
7 DETECT MALFUNCTIONING PART
Check the following.
1. Check closed throttle position switch idle position. Refer to EC-SR-84.
2. Check IACV-AAC valve and replace if necessary. Refer to EC-SR-263.
3. Check IACV-AAC valve harness and repair if necessary. Refer to EC-SR-263.
4. Perform ªIdle air volume learningº. Refer to EC-SR-46.
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 8.
Throttle position
sensor harness
connector Throttle body
Closed throttle position switch
harness connector (CVT models)
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont'd)
EC-40

8 CHECK HEATED OXYGEN SENSOR 1 (FRONT) SIGNAL
With CONSULT-II
1. See ªHO2S1 MNTR (B1)º in ªDATA MONITORº mode.
2. Run engine at about 2,000 rpm for about 2 minutes under no-load.
3. Maintain engine at 2,000 rpm under no-load (engine is warmed up to normal operating temperature) and check that the monitor fluctu-
ates between ªLEANº and ªRICHº more than five times during 10 seconds.
SEF820Y1 cycle: RICH®LEAN®RICH
2 cycles: RICH®LEAN®RICH®LEAN®RICH
Without CONSULT-II
1. Set ªHeated oxygen sensor 1 (front) monitorº in the Diagnostic Test Mode II. (See page EC-SR-58.)
Short terminals between ªIGNº and ªCHKº for 2 seconds or more. Then open the circuit.
SEF945W2. Run engine at about 2,000 rpm for about 2 minutes under no-load (engine is warmed up to normal operating temperature).
3. Maintain engine at 2,000 rpm under no-load and check that MI goes on more than five times during 10 seconds.
SAT652J
OK or NG
OK©INSPECTION END
NG©GO TO 9.
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont'd)
EC-41

9 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. Then connect harness connector terminal for heated oxygen sensor 1 (front) to ground with a jumper wire.
MEF031DA5. Check for continuity between terminal 62 of ECM harness connector and body ground.
Continuity exists...OK
Continuity does not exist...NG
OK or NG
OK©1. Connect ECM harness connector to ECM.
2. GO TO 10.
NG©1. Repair or replace harness.
2. GO TO 5. (With CONSULT-II)
3. GO TO 6. (Without CONSULT-II)
Heated oxygen sensor 1 (front)
harness connector
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont'd)
EC-42

10 PREPARATION FOR ªCOº % CHECK
With CONSULT-II
1. Connect ECM harness connector to ECM.
2. Connect battery ground cable.
3. Select ªENGINE COOLANT TEMPº in ªACTIVE TESTº mode.
4. Set ªCOOLANT TEMPº to 5ÉC (41ÉF) by touching ªQuº and ªQdº and ªUPº, ªDOWNº.
NEF061A
Without CONSULT-II
1. Connect ECM harness connector to ECM.
2. Disconnect engine coolant temperature sensor harness connector.
3. Connect a resistor (4.4 kW) between terminals of engine coolant temperature sensor harness connector.
SEF053RA4. Connect battery ground cable.
©GO TO 11.
Engine coolant
temperature sensor
harness connector
4.4 kWresistor
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont'd)
EC-43