O2 sensor NISSAN LATIO 2010 Service Repair Manual

EM-4
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PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005398023
The Supplemental Restraint System such as “A IR 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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005398024
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: January 20102010 Versa

EM-8
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PREPARATION
PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000005398033
Tool number
(Kent-Moore No.)
Tool nameDescription
K V 1 0 1111 0 0
(J-37228)
Seal cutter Removing oil pan (lower and upper) etc.
KV10116200
(J-26336-B)
Valve spring compressor
1. KV10115900
(J-26336-20)
Attachment
2. KV10109220
( — )
Adapter Disassembling and assembling valve mecha-
nism
Part (1) is a component of KV10116200, but
Part (2) is not so.
KV10112100
(BT-8653-A)
Angle wrench Tightening bolts for bearing cap, cylinder
head, etc. in angle
KV10117100
( — )
Heated oxygen sensor wrench Loosening or tightening heated oxygen sen-
sor 1
For 22 mm (0.87 in) width hexagon nut
KV10107902
(J-38959)
Valve oil seal puller
1. KV10116100
( — )
Valve oil seal puller adapter Removing valve oil seal
KV10115600
(J-38958)
Valve oil seal drift Installing valve oil seal
Use side A.
a: 20 mm (0.79 in) dia. d: 8 mm (0.31 in) dia.
b: 13 mm (0.51 in) dia. e: 10.7 mm (0.421 in)
c: 10.3 mm (0.406 in) dia. f: 5 mm (0.20 in)
Unit: mm (in)
S-NT046
PBIC1650E
S-NT014
NT379
SZNT605
S-NT603
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EM-10
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PREPARATION
Tool name
Description
Power tool Loosening bolts and nuts
Spark plug wrench Removing and installing spark plug
Valve seat cutter set Finishing valve seat dimensions
Piston ring expander Removing and installing piston ring
Valve guide drift Removing and installing valve guide
Valve guide reamer (1): Reaming valve guide inner hole (2): Reaming hole for oversize valve guide
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner Reconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a = 18 mm (0.71 in) dia. for zirconia heated
oxygen sensor
b = 12 mm (0.47 in) dia. for titania heated
oxygen sensor
PBIC0190E
PBIC3874E
S-NT048
S-NT030
PBIC4012E
PBIC4013E
AEM488
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PREPARATIONEM-11
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Acoustic tension gauge
Checking drive belt tension
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907) Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
Manual lift table caddy Removing and installing engine
Tool name
Description
PBIC3881E
AEM489
ZZA1210D
Revision: January 20102010 Versa

EM-26
< ON-VEHICLE REPAIR >[HR16DE]
AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT
Exploded ViewINFOID:0000000005398047
Removal and InstallationINFOID:0000000005398048
REMOVAL
1. Remove the battery. Refer to
SC-7, "Removal and Installation".
2. Remove the air duct (inlet).
3. Remove the air cleaner filter from the air cleaner case. Refer to EM-17, "
Removal and Installation".
4. Remove the air duct [between air duct (inlet) and air cleaner case] from the air cleaner case.
5. Remove the PCV hose.
6. Remove the air duct (between air cleaner case and electric throttle control actuator). • Add marks as necessary for easier installation.
7. Disconnect harness connector from mass air flow sensor.
8. Remove air cleaner case.
9. Remove the mass air flow sensor from the air cleaner case, if necessary. CAUTION:
• Handle mass air flow sensor carefully and avoid impacts.
• Never touch sensor part.
INSTALLATION
Installation is in the reverse order of removal.
1. Air cleaner filter 2. Mass air flow sensor 3. O-ring
4. Holder 5. Air cleaner cover 6. Air duct
7. PCV hose 8. Clip 9. Air duct (Inlet)
10. Grommet 11. Air duct 12. Grommet
13. Air cleaner case
A. To electric throttle control actuator B. To rocker cover
PBIC3645E
Revision: January 20102010 Versa

EXHAUST MANIFOLDEM-31
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EXHAUST MANIFOLD
Exploded ViewINFOID:0000000005398052
Removal and InstallationINFOID:0000000005398053
REMOVAL
1. Remove the cowl. Refer to
EI-22, "Removal and Installation".
2. Remove heat insulator.
3. Remove exhaust front tube. Refer to EX-6, "
Component".
4. Remove the harness bracket of air fuel ratio sensor 1 from the cylinder head.
5. Remove exhaust manifold covers.
6. Remove the air fuel ratio sensor 1.
1. Exhaust manifold cover 2. Exhaust manifold cover3. Harness bracket
4. Air fuel ratio sensor 1 5. Exhaust manifold stay6. Exhaust manifold
7. Gasket 8. Stud bolt9. Heat insulator
: Engine front
PBIC4750E
Revision: January 20102010 Versa

EM-32
< ON-VEHICLE REPAIR >[HR16DE]
EXHAUST MANIFOLD
• Use Tool (A) to remove air fuel ratio sensor 1.
CAUTION:
Handle air fuel ratio sensor 1 carefully and avoid impacts.
NOTE:
The exhaust manifold can be removed and installed without
removing the air fuel ratio sensor 1 (Disassembly of harness
connector is necessary).
7. Remove exhaust manifold side bolt of exhaust manifold stay.
8. Remove exhaust manifold. • Loosen nuts in the reverse of the order shown.
9. Remove gasket. CAUTION:
Cover engine openings to avoid entry of foreign materials.
10. Remove exhaust manifold cover from back of exhaust manifold.
INSPECTION AFTER REMOVAL
Mounting Surface Distortion
• Use suitable tools (A) and (B) to check distortion of exhaust mani- fold mounting surface as shown.
• Replace exhaust manifold if outside the limit.
INSTALLATION
Installation is in the reverse order of removal.
Exhaust Manifold
Tool number : KV10117100 ( — )
PBIC3654E
: Engine front
ALBIA0625ZZ
Limit : 0.3 mm (0.012 in)
PBIC3530J
Revision: January 20102010 Versa

EXHAUST MANIFOLDEM-33
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1. Tighten exhaust manifold nuts to specification in two stages in
the numerical order shown.
2. Use Tool (A) to install the air fuel ratio sensor 1. CAUTION:
• Handle it carefully and avoid impacts.
• Before installing a new air fuel ratio sensor 1, clean theexhaust tube threads using suitable tool and approved
anti-seize lubricant.
• Do not over-tighten the air fu el ratio sensor 1. Doing so
may damage the air fuel rati o sensor 1, resulting in the
MIL coming on.
: Engine front
ALBIA0625ZZ
Tool number : KV10117100 ( — )
Tool number : — (J-43897-12)
Tool number : — (J-43897-18)
PBIC3654E
Revision: January 20102010 Versa

CAMSHAFTEM-59
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CAMSHAFT
Exploded ViewINFOID:0000000005398067
Removal and InstallationINFOID:0000000005398068
CAUTION:
The rotation direction in the
text indicates all directions seen from the engine front.
REMOVAL
1. Remove timing chain. Refer to EM-49, "Removal and Installation".
2. Remove camshaft position sensor (PHASE) from rear end of cylinder head. CAUTION:
Handle it carefully and avoid impacts.
1. Camshaft bracket (No. 2 to 5) 2. Camshaft bracket (No.1) 3. Camshaft sprocket (EXH)
4. Camshaft sprocket (INT) 5. Cylinder head 6. Oil filter (for intake valve timing control)
7. Washer 8. Plug 9. Intake valve timing control solenoid valve
10. O-ring 11. O-ring 12. Camshaft position sensor (PHASE)
13. Valve lifter 14. Camshaft (INT) 15. Camshaft (EXH)
A. Refer to Installation procedure
PBIC3672E
Revision: January 20102010 Versa

CAMSHAFTEM-65
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10. Install timing chain. Refer to
EM-49, "Removal and Installation".
11. Install the camshaft position sensor (PHASE) to the rear end of cylinder head. • Tighten bolts with it seated completely.
12. Check and adjust valve clearance. Refer to EM-20, "
Inspection and Adjustment".
13. Installation of the remaining components is in the reverse order of removal.
InspectionINFOID:0000000005398069
INSPECTION AFTER REMOVAL
Oil Filter
• Make sure that there is no foreign material on the oil filter (1) and check it for clogging.
• Check the oil filter (1) for damage.
• If there is some damage, replace t he oil filter (1), the plug, and the
washer as a set.
CAUTION:
Do not reuse the washer.
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 jour- nals of camshaft.
CAUTION:
Never support No. 1 journal (on the side of camshaft
sprocket) because it has a different diameter from the other
four locations.
2. Set a dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on the dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1. Measure the camshaft cam height with a micrometer (A).
2. If wear exceeds the limit, replace camshaft.
Camshaft Journa l Oil Clearance
CAMSHAFT JOURNAL DIAMETER
PBIC3693E
Standard and Limit:
Refer to EM-112, "
Camshaft".
PBIC2499E
Standard and Cam wear Limit:
Refer to EM-112, "
Camshaft".
PBIC3178J
Revision: January 20102010 Versa