fuel type NISSAN X-TRAIL 2003 Service Repair Manual

PRECAUTIONS
GI-5
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Use approved bonding agent, sealants or their equivalents when required.

Use tools and recommended special tools where specified for safe and efficient service repairs.

When repairing the fuel, oil, water, vacuum or exhaust systems, check all affected lines for leaks.

Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for All Mode 4 × 4 SystemEAS000GQ
Even if the 2WD mode is selected, the All mode 4 × 4 system occasionally changes from 2WD to 4WD auto-
matically depending on the driving conditions.
When spinning the front wheels by running the engine with the front wheels jacked up or mounted on the free
rollers / or a chassis dynamometer, be careful because the vehicle may suddenly move due to the driving
force from the rear wheels.
To avoid personal injury and vehicle damage, use one of the following methods when working with the front
wheels drive force and spinning freely.

Remove the propeller shaft.

Use free rollers / chassis dynamometer designed for 4WD vehicles.
Precautions for Three Way CatalystEAS000FR
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.

Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.

When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.

Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precautions for FuelEAS000P9
GASOLINE ENGINE
Use unleaded gasoline with an octane rating of at least 95 (RON).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity.
DIESEL ENGINE
Diesel fuel of at least 50 cetane.
If two types of diesel fuel are available, use summer or winter fuel properly according to the following temper-
ature conditions.

Above –7°C (20°F) ... Summer type diesel fuel.

Below –7°C (20°F) ... Winter type diesel fuel.
SGI234

CYLINDER HEAD
EM-67
[QR]
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CYLINDER HEADPFP:11041
On-Vehicle ServiceEBS00KNP
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure by “Without CONSULT-II”. Refer to EC-48, "
FUEL PRESSURE RELEASE" (WITH
EURO-OBD) or EC-510, "
FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).

Leave fuel pump fuse disconnecting to avoid fuel injection during measurement.
3. Remove ignition coil and spark plug from each cylinder. Refer to EM-29, "
IGNITION COIL" and EM-30,
"SPARK PLUG" .
4. Connect engine tachometer (not required in use of CONSULT-II).
5. Install compression tester with adapter onto spark plug hole.

Use compression gauge whose picking up end inserted to
spark plug hole is smaller than 20 mm (0.79 in) in diameter.
Otherwise, it may be caught by cylinder head during removal.
6. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and engine rpm. Perform these steps to check each cyl-
inder.
Compression pressure:
Unit: kPa (bar, kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain specified engine speed.

If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.

If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check
piston rings and replace if necessary.
KBIA0130E
SBIA0533E
Engine type Standard Minimum Differential limit between cylinders
QR20DE 1,190 (11.9, 12.1, 173) / 250 990 (9.9, 10.1, 144) / 250
100 (1.0, 1.0, 14) / 250
QR25DE 1,250 (12.5, 12.8, 181) / 250 1,060 (10.6, 10.8, 154) / 250

EM-170
[YD22DDTi]
CAMSHAFT

CAMSHAFTPFP:13001
Removal and InstallationEBS00LRR
CAUTION:

This engine will have a different valve arrangement from
normal DOHC 4-valve type engines. As both camshafts on
this engine have intake and exhaust camshafts, in this
chapter they are named as follows:

Refer to the figure for intake and exhaust valve arrange-
ment.
(The camshafts have, alternately, either intake valve or an
exhaust valve.)
REMOVAL
1. Drain engine coolant. Refer to CO-31, "Changing Engine Coolant" .
2. Remove charge air cooler. Refer to EM-135, "
Removal and Installation" .
3. Remove air duct. Refer to EM-133, "
Removal and Installation" .
4. Remove air inlet pipe. Refer to EM-141, "
EXHAUST MANIFOLD AND TURBOCHARGER" .
5. Remove rocker cover. Refer to EM-168, "
Removal and Installation" .
6. Remove vacuum pump. Refer to EM-153, "
Removal and Installation" .
7. Remove fuel injector. Refer to EM-157, "
Removal and Installation" .
8. Remove secondary timing chain. Refer to EM-180, "
Removal and Installation" .
9. Remove camshaft sprockets.
1. Camshaft bracket 2. Camshaft (right side) 3. Camshaft (left side)
4. Camshaft sprocket (right side) 5. Camshaft sprocket (left side) 6. Adjusting shim
7. Valve lifter 8. Cylinder head
Camshaft (right side) : Intake manifold side
Camshaft (left side) : Exhaust manifold side
PBIC2319E
SBIA0178E

EM-192
[YD22DDTi]
PRIMARY TIMING CHAIN

d. Tighten bolts in numerical order shown in the figure.

Install the following four types of bolts, referring to the figure.

The shank length under the bolt neck above is the length of
threaded part (pilot portion not included).
e. After tightening all the bolts, re-tighten in the same order.
2. Install power steering oil pump.
3. Install fuel pump. Refer to EM-161, "
FUEL PUMP" .

Before installing, make sure that spacer and the hole 6 mm
(0.24 in) in diameter on coupling are aligned.
4. Install chain guide and tension guides.
5. Install crankshaft sprocket, aligning it with crankshaft key on the
far side.
6. Install primary timing chain with fuel pump sprocket.

When installing, match the alignment marks on sprockets with
color coded alignment marks (colored links) on primary timing
chain.

Install fuel pump sprocket washer with the surface marked “F”
(front mark) facing the front of the engine.
7. Install timing chain onto power steering oil pump sprocket and
through chain guide.
8. Use the positioning stopper pin (special service tool) to hold the
fuel pump sprocket and install the bolt.

Using the TORX wrench (special service tool), turn the fuel
pump shaft little by little to adjust the position of the fuel pump
sprocket. Insert positioning stopper pin into the hole 6 mm
(0.24 in) in diameter on fuel pump sprocket so that the stop-
per pin goes through the fuel pump body. While the stopper
pin is in place, install the bolt.16 mm (0.63 in) : Bolt No. 1, 2, 16, 17, 18, 19, 20, 21, 22
20 mm (0.79 in) : Bolt No. 3, 4, 6, 9, 10, 11, 13, 14
25 mm (0.98 in) : Bolt No. 12, 15
35 mm (1.38 in) : Bolt No. 5, 7, 8
SBIA0211E
PBIC2498E
MBIA0079E
MBIA0049E

INDEX FOR DTC
EC-19
[QR (WITH EURO-OBD)]
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[QR (WITH EURO-OBD)]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS010KY
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the Type approval number on the
identification plate. Refer to GI-44, "
IDENTIFICATION PLATE" .
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-132, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
Items
(CONSULT-II screen terms)DTC*
1
TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3
A/T 1ST GR FNCTN P0731 0731 2×AT-125
A/T 2ND GR FNCTN P0732 0732 2×AT-130
A/T 3RD GR FNCTN P0733 0733 2×AT-135
A/T 4TH GR FNCTN P0734 0734 2×AT-140
APP SEN 1/CIRC P2122 2122 1×EC-386
APP SEN 1/CIRC P2123 2123 1×EC-386
APP SEN 2/CIRC P2127 2127 1×EC-393
APP SEN 2/CIRC P2128 2128 1×EC-393
APP SENSOR P2138 2138 1×EC-409
ATF TEMP SEN/CIRC P0710 0710 2×AT-106
BRAKE SW/CIRCUIT P1805 1805 2 —EC-380
CAN COMM CIRCUIT U1000
1000*51×EC-132
CAN COMM CIRCUIT U1001
1001*52—EC-132
CKP SEN/CIRCUIT P0335 0335 2×EC-247
CMP SEN/CIRC-B1 P0340 0340 2×EC-254
CTP LEARNING P1225 1225 2 —EC-364
CTP LEARNING P1226 1226 2 —EC-366
CYL 1 MISFIRE P0301 0301 2×EC-237
CYL 2 MISFIRE P0302 0302 2×EC-237
CYL 3 MISFIRE P0303 0303 2×EC-237
CYL 4 MISFIRE P0304 0304 2×EC-237
ECM P0605 0605 1 or 2× or —EC-279
ECM BACK UP/CIRC P1065 1065 2×EC-282
ECT SEN/CIRCUIT P0117 0117 1×EC-162
ECT SEN/CIRCUIT P0118 0118 1×EC-162
ENG OVER TEMP P1217 1217 1×EC-348
ENGINE SPEED SIG P0725 0725 2×AT- 11 9
ETC ACTR P1121 1121 1×EC-290
ETC FUNCTION/CIRC P1122 1122 1×EC-292
E T C M O T P 11 2 8 11 2 8 1×EC-310
ETC MOT PWR P1124 1124 1×EC-302
ETC MOT PWR P1126 1126 1×EC-302
FUEL SYS-LEAN-B1 P0171 0171 2×EC-216
FUEL SYS-RICH-B1 P0172 0172 2×EC-223
HO2S1 (B1) P0132 0132 2×EC-176

EC-24
[QR (WITH EURO-OBD)]
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS010L0
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
On Board Diagnostic (OBD) System of Engine and A/TEBS010L1
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the battery ground cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MI to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-70, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MI to light up due to the short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of the fuel injection system, etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PrecautionEBS010L2

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cables while engine is
running.

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect battery
ground cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

Before removing parts, turn ignition switch OFF and then
disconnect battery ground cable.
SEF289H

EC-36
[QR (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM


When starting the engine
MIXTURE RATIO SELF-LEARNING CONTROL
The mixture ratio feedback control system monitors the mixture ratio signal transmitted from heated oxygen
sensor 1. This feedback signal is then sent to the ECM. The ECM controls the basic mixture ratio as close to
the theoretical mixture ratio as possible. However, the basic mixture ratio is not necessarily controlled as orig-
inally designed. Both manufacturing differences (i.e., mass air flow sensor hot wire) and characteristic
changes during operation (i.e., injector clogging) directly affect mixture ratio.
Accordingly, the difference between the basic and theoretical mixture ratios is monitored in this system. This is
then computed in terms of “injection pulse duration” to automatically compensate for the difference between
the two ratios.
“Fuel trim” refers to the feedback compensation value compared against the basic injection duration. Fuel trim
includes short term fuel trim and long term fuel trim.
“Short term fuel trim” is the short-term fuel compensation used to maintain the mixture ratio at its theoretical
value. The signal from heated oxygen sensor 1 indicates whether the mixture ratio is RICH or LEAN compared
to the theoretical value. The signal then triggers a reduction in fuel volume if the mixture ratio is rich, and an
increase in fuel volume if it is lean.
“Long term fuel trim” is overall fuel compensation carried out long-term to compensate for continual deviation
of the short term fuel trim from the central value. Such deviation will occur due to individual engine differences,
wear over time and changes in the usage environment.
FUEL INJECTION TIMING
Two types of systems are used.
Sequential Multiport Fuel Injection System
Fuel is injected into each cylinder during each engine cycle according to the firing order. This system is used
when the engine is running.
Simultaneous Multiport Fuel Injection System
Fuel is injected simultaneously into all four cylinders twice each engine cycle. In other words, pulse signals of
the same width are simultaneously transmitted from the ECM.
The four injectors will then receive the signals two times for each engine cycle.
This system is used when the engine is being started and/or if the fail-safe system (CPU) is operating.
FUEL SHUT-OFF
Fuel to each cylinder is cut off during deceleration or operation of the engine at excessively high speeds.
SEF337W

EC-240
[QR (WITH EURO-OBD)]
DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE

5. CHECK IGNITION SPARK
1. Disconnect ignition coil assembly from rocker cover.
2. Connect a known good spark plug to the ignition coil assembly.
3. Place end of spark plug against a suitable ground and crank engine.
4. Check for spark.
OK or NG
OK >> GO TO 6.
NG >> Check ignition coil, power transistor and their circuits.
Refer to EC-417, "
IGNITION SIGNAL" .
6. CHECK SPARK PLUGS
Remove the spark plugs and check for fouling, etc.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace spark plug(s) with standard type
one(s). For spark plug type, refer to MA-26, "
Checking
and Changing Spark Plugs" .
7. CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-67, "
CHECKING COMPRESSION PRESSURE" .
OK or NG
OK >> GO TO 8.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
8. CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-48, "
FUEL PRESSURE RELEASE" .
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-48, "
FUEL PRESSURE CHECK" .
OK or NG
OK >> GO TO 9.
NG >> Follow the construction of FUEL PRESSURE CHECK.
SEF575Q
SEF156I
Standard:
1,190 kPa (11.9 bar, 12.1 kg/cm2 , 172 psi)/250 rpm
Minimum:
990 kPa (9.9 bar, 10.1 kg/cm
2 , 144 psi)/250 rpm
Difference between each
cylinder:98 kPa (0.98 bar, 1.0 kg/cm
2 , 14 psi)/250 rpm
At idle: Approx. 350 kPa (3.5 bar, 3.57 kg/cm
2 , 51 psi)

FUEL PUMP CIRCUIT
EC-443
[QR (WITH EURO-OBD)]
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FUEL PUMP CIRCUITPFP:17042
DescriptionEBS010VH
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine
startability. If the ECM receives a engine speed signal from the crankshaft position sensor (POS) and cam-
shaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the
engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump
operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel
pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.
COMPONENT DESCRIPTION
A turbine type design fuel pump is used in the fuel tank.
CONSULT-II Reference Value in Data Monitor ModeEBS010VI
Specification data are reference values.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
Fuel pump control Fuel pump relay
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and crankingOperates.
When engine is stoppedStops in 1.5 seconds.
Except as shown aboveStops.
PBIB0513E
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY

For 1 second after turning ignition switch ON

Engine running or crankingON

Except above conditions OFF

EC-498
[QR (WITHOUT EURO-OBD)]
ENGINE CONTROL SYSTEM

MIXTURE RATIO SELF-LEARNING CONTROL
The mixture ratio feedback control system monitors the mixture ratio signal transmitted from heated oxygen
sensor 1. This feedback signal is then sent to the ECM. The ECM controls the basic mixture ratio as close to
the theoretical mixture ratio as possible. However, the basic mixture ratio is not necessarily controlled as orig-
inally designed. Both manufacturing differences (i.e., mass air flow sensor hot wire) and characteristic
changes during operation (i.e., injector clogging) directly affect mixture ratio.
Accordingly, the difference between the basic and theoretical mixture ratios is monitored in this system. This is
then computed in terms of “injection pulse duration” to automatically compensate for the difference between
the two ratios.
“Fuel trim” refers to the feedback compensation value compared against the basic injection duration. Fuel trim
includes short term fuel trim and long term fuel trim.
“Short term fuel trim” is the short-term fuel compensation used to maintain the mixture ratio at its theoretical
value. The signal from heated oxygen sensor 1 indicates whether the mixture ratio is RICH or LEAN compared
to the theoretical value. The signal then triggers a reduction in fuel volume if the mixture ratio is rich, and an
increase in fuel volume if it is lean.
“Long term fuel trim” is overall fuel compensation carried out long-term to compensate for continual deviation
of the short term fuel trim from the central value. Such deviation will occur due to individual engine differences,
wear over time and changes in the usage environment.
FUEL INJECTION TIMING
Two types of systems are used.
Sequential Multiport Fuel Injection System
Fuel is injected into each cylinder during each engine cycle according to the firing order. This system is used
when the engine is running.
Simultaneous Multiport Fuel Injection System
Fuel is injected simultaneously into all four cylinders twice each engine cycle. In other words, pulse signals of
the same width are simultaneously transmitted from the ECM.
The four injectors will then receive the signals two times for each engine cycle.
This system is used when the engine is being started and/or if the fail-safe system (CPU) is operating.
FUEL SHUT-OFF
Fuel to each cylinder is cut off during deceleration or operation of the engine at excessively high speeds.
SEF337W