2001 NISSAN PICK-UP air filter

4 CHECK FUEL PRESSURE
1. Release fuel pressure to zero.
Refer to EC-3033.
2. Install fuel pressure gauge and check fuel pressure.
At idling:
When fuel pressure regulator valve vacuum hose is connected.
235 kPa (2.35 bar, 2.4 kg/cm
2, 34 psi)
When fuel pressure regulator valve vacuum hose is disconnected.
294 kPa (2.94 bar, 3.0 kg/cm
2, 43 psi)
OK or NG
OK©GO TO 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Fuel pump and circuit (Refer to EC-3378.)
+Fuel pressure regulator (Refer to EC-3034.)
+Fuel lines (Refer to ªChecking Fuel Linesº, MA section.)
+Fuel filter for clogging
©Repair or replace.
6 CHECK MASS AIR FLOW SENSOR
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check ªMASS AIR FLOWº in ªDATA MONITORº mode with CONSULT-II.
at idling: 0.9 - 5.8 g´m/sec
at 2,500 rpm: 7.5 - 13.2 g´m/sec
With GST
1. Start engine and warm it up to normal operating temperature.
2. Check mass air flow sensor signal in MODE 1 with GST.
at idling: 0.9 - 5.8 g´m/sec
at 2,500 rpm: 7.5 - 13.2 g´m/sec
OK or NG
OK©GO TO 7.
NG©Check connectors for rusted terminals or loose connections in the mass air flow sensor
circuit or engine grounds. Refer to EC-3143.
DTC P0171 FUEL INJECTION SYSTEM
FUNCTION
KA24DE (EURO OBD)
Diagnostic Procedure
EC-3241

10 DETECT MALFUNCTIONING PART
Check the following.
+Fuel pump and circuit (Refer to EC-3378.)
+Fuel pressure regulator (Refer to EC-3034.)
+Fuel lines (Refer to ªChecking Fuel Linesº, MA section).
+Fuel filter for clogging
©Repair or replace.
11 CHECK IGNITION TIMING
1. Check the following items. Refer to ªBasic Inspectionº, EC-3086.
MTBL1315
OK or NG
OK (With CONSULT-II)©GO TO 12.
OK (Without CONSULT-
II)©GO TO 13.
NG©Adjust ignition timing.
DTC P0300 - P0304 NO.4-1CYLINDER MISFIRE, MULTIPLE CYLINDER
MISFIRE
KA24DE (EURO OBD)
Diagnostic Procedure
EC-3256

tion due to receiving external noise, degraded operation
of ICs, etc.
+Keep engine control system parts and harnesses dry.
+Before replacing ECM, perform Terminals and Reference
Value inspection and make sure ECM functions properly.
Refer to EC-3464.
+Fuel filter switch is equipped except for Europe.
If MIL illuminates or blinks irregularly when engine is
running, water may have accumulated in fuel filter. Drain
water from fuel filter. Refer to EC-3427. If this does not
correct the problem, perform specified trouble diagnos-
tic procedures.
+After performing each TROUBLE DIAGNOSIS, perform
ªDTC Confirmation Procedureº or ªOverall Function
Checkº.
The DTC should not be displayed in the ª DTC Confirma-
tion Procedureº if the repair is completed. The ªOverall
Function Checkº should be a good result if the repair is
completed.
MEF040D
SAT652J
PRECAUTIONSYD25DDTi
Precautions (Cont'd)
EC-3403

Air Bleeding
Pump the priming pump to bleed air.
+When air is bled completely, the pumping of the priming
pump suddenly becomes heavy. Stop operation at that
time.
+If it is difficult to bleed air by the pumping of the prim-
ing pump (the pumping of the priming pump does not
become heavy), disconnect the fuel supply hose
between the fuel filter and the injection pump. Then, per-
form the operation described above, and make sure that
fuel comes out. (Use a pan, etc. so as not to spill fuel.
Do not let fuel get on engine and other parts.) After that,
connect the hose, and then bleed air again.
+Start engine and let it idle for at least one minute after
performing air bleeding.
Water Draining
EXCEPT FOR EUROPE
+If the MIL illuminates or blinks during the engine operation,
drain the water as follows.
1. Loosen drain cock and drain water.
Loosening drain cock four to five turns causes water to
start draining.
Do not remove drain cock by loosening it excessively.
If water does not drain properly, move the priming up and
down.
Water amount when the MIL blinks:
90 - 150 m!(3.2 - 5.3 Imp fl oz)
CAUTION:
When the water is drained, the fuel is also drained. Use a
pan, etc. to avoid fuel adherence to the rubber parts such as
the engine mount insulator.
Do not over-tighten the water draining cock. This will dam-
age the cock thread, resulting in water or fuel leak.
2. Bleed air of the fuel filter. Refer to EC-3426.
3. Start the engine, then check that the MIL goes off.
FOR EUROPE
1. Loosen drain cock and drain water.
Loosening drain cock four to five turns causes water to
start draining.
Do not remove drain cock by loosening it excessively.
If water does not drain properly, move the priming handle up
and down.
CAUTION:
When the water is drained, the fuel is also drains. Use a pan,
etc. to avoid fuel adherence to rubber parts such as the
engine mount insulator.
Do not over-tighten the water drain cock. This will damage
the cock thread, resulting in water or fuel leak.
SMA825B
BASIC SERVICE PROCEDUREYD25DDTi
EC-3426

2. Bleed air of the fuel filter. Refer to EC-3426.
Accelerator Position Sensor Idle Position
Learning
DESCRIPTION
ªAccelerator Position Sensor Idle Position Learningº is an opera-
tion to clear the self-learning fully closed accelerator position.
It must be performed each time harness connector of accelera-
tor position sensor or ECM is disconnected.
OPERATION PROCEDURE
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªOFF ACCEL PO SIGº in ªACTIVE TESTº mode with
CONSULT-II.
3. Touch ªCLEARº.
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Let engine idle for 10 minutes.
BASIC SERVICE PROCEDUREYD25DDTi
EC-3427

Basic Inspection
Precaution:
Perform Basic Inspection without electrical or mechanical
loads applied;
+Shift lever is in neutral position,
+Heat up switch is OFF,
+Headlamp switch is OFF,
+Air conditioner switch is OFF,
+Rear defogger switch is OFF,
+Steering wheel is in the straight-ahead position, etc.
1 INSPECTION START
1. Check service records for any recent repairs that may indicate a related problem.
2. Check the current need for scheduled maintenance, especially for fuel filter and air cleaner filter. Refer to MA section.
3. Open engine hood and check the following:
+Harness connectors for improper connections
+Vacuum hoses for splits, kinks, or improper connections
+Wiring for improper connections, pinches, or cuts
SEF142I
4. Start engine and warm it up to the normal operating temperature.
cGO TO 2.
2 PREPARATION FOR CHECKING IDLE SPEED
With CONSULT-II
Connect CONSULT-II to the data link connector.
Without CONSULT-II
Install diesel tacho tester to the vehicle.
cGO TO 3.
TROUBLE DIAGNOSIS Ð BASIC INSPECTIONYD25DDTi
EC-3444

7 CHECK IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and let it idle.
2. Select ªCKPSzRPM (TDC)º in ªDATA MONITORº mode with CONSULT-II.
3. Read idle speed.
SEF817Y
Without CONSULT-II
1. Start engine and let it idle.
2. Check idle speed.
750 25 rpm
OK or NG
OKcINSPECTION END
NGcGO TO 8.
8 CHECK AIR CLEANER FILTER
Check air cleaner filter for clogging or breaks.
OK or NG
OKcGO TO 9.
NGcReplace air cleaner filter.
9 CHECK FUEL INJECTION NOZZLE
Check fuel injection nozzle opening pressure. Refer to ªInjection pressure testº, EC-3418.
OK or NG
OKcGO TO 10.
NGcReplace fuel injection nozzle assembly.
TROUBLE DIAGNOSIS Ð BASIC INSPECTIONYD25DDTi
Basic Inspection (Cont'd)
EC-3447

MAINTENANCE
SECTION
MA
MODIFICATION NOTICE:
+KA24DE engine information has been added. Refer to the Service Manual of D22 Supplement-II (SM9E-
D22BE0E) for the maintenance procedure not included here.
+YD25DDTi engine has been added.
CONTENTS
PERIODIC MAINTENANCE................................ 3002
Maintenance Schedule for Petrol Engines
(Annual Mileage < 30,000 km/year) ................ 3002
Maintenance Schedule for Diesel Engines
(Annual Mileage < 30,000 km/year) ................ 3003
Maintenance Under Severe Driving Conditions
(Annual Driving Distance < 30,000 km/year)... 3004
Maintenance Schedule for Petrol Engines
(Annual Mileage > 30,000 km/year) ................ 3005
Maintenance Schedule for Diesel Engines
(Annual Mileage > 30,000 km/year) ................ 3006
Maintenance Under Severe Driving Conditions
(Annual Driving Distance > 30,000 km/year)... 3007
RECOMMENDED FLUIDS AND
LUBRICANTS...................................................... 3008
Fluids and Lubricants....................................... 3008
SAE Viscosity Number..................................... 3009
KA24DE
ENGINE MAINTENANCE.................................... 3010Changing Air Cleaner Filter ............................. 3010
Changing Positive Crankcase Ventilation
(PCV) Filter ...................................................... 3010
YD25DDTi
ENGINE MAINTENANCE.................................... 3011
Checking Tightening Torque............................ 3011
Checking Drive Belts ....................................... 3011
Changing Engine Oil ........................................ 3012
Changing Oil Filter ........................................... 3013
Changing Engine Coolant ................................ 3014
Checking Cooling System................................ 3016
Checking and Replacing Fuel Filter and
Draining Water ................................................. 3018
Checking Fuel Lines ........................................ 3019
Cleaning and Replacing Air Cleaner Filter ...... 3019
Checking Cyclone Pre-air Cleaner .................. 3019
SERVICE DATA AND SPECIFICATIONS
(SDS).................................................................... 3020
Engine Maintenance ........................................ 3020

MA