O2 sensor NISSAN LATIO 2010 Service Repair Manual

EM-84
< REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
1. Remove front wheel sensor (LH and RH) for ABS from steering knuckle (if equipped). Refer to BRC-34,
"Removal and Installation" (ABS).
2. Remove brake caliper assembly with piping connected fr om steering knuckle. Temporarily secure it on the
vehicle side with a rope to avoid load on it. Refer to BR-25, "
Component".
3. Remove drive shafts (LH and RH) from steering knuckle. Refer to FA X - 9 , "
Removal and Installation (Left
Side)" and FAX-10, "Removal and Installation (Right Side)".
4. Remove exhaust front tube. Refer to EX-6, "
Component".
5. Remove rear torque rod. NOTE:
A/T models shown.
6. Remove A/T cooler hoses from transmission (if equipped).
7. Preparation for the separation work of transaxle is as follows: • Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to EM-42, "
Compo-
nent".
Removal
1. Install engine slinger to cylinder head front left side (A) and rear
right side (B) and support the engine with a hoist.
2. Lift with a hoist and secure the engine in appropriate position.
3. Use a suitable tool (A) to securely support bottom of the engine and the transaxle assembly and simultaneously adjust hoist ten-
sion.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
PBIC3737E
PBIC3738E
PBIC3223J
Revision: January 20102010 Versa

CYLINDER BLOCKEM-89
< DISASSEMBLY AND ASSEMBLY > [HR16DE]
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CYLINDER BLOCK
Exploded ViewINFOID:0000000005398081
1. Crankshaft position sensor (POS) cover 2. Crankshaft position sensor (POS) 3. O-ring
4. Water drain plug 5. Cylinder block 6. Oil level gauge
7. Oil level gauge guide 8. O-ring 9. Knock sensor
PBIC3770E
Revision: January 20102010 Versa

EM-90
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
Disassembly and Assembly
INFOID:0000000005398082
DISASSEMBLY
1. Remove cylinder head. Refer to EM-73, "Removal and Installation".
2. Remove knock sensor. CAUTION:
Carefully handle knock sensor avoiding shocks.
3. Remove crankshaft position sensor (POS) and cover. CAUTION:
• Avoid impacts such as a dropping.
• Never disassemble.
• Keep it away from metal particles.
• Never place the sensor where it is exposed to magnetism.
4. Remove piston and connecting rod assembly with the following procedure: • Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer toEM-97, "
Inspection".
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod cap.
c. Using a hammer handle or similar tool, push piston and connect- ing rod assembly out to the cylinder head side.
CAUTION:
• Be careful not to damage matching surface with connect-ing rod cap.
• Be careful not to damage the cylinder wall and crankshaft pin, resulting from an inte rference of the connecting rod
big end.
5. Remove connecting rod bearings. CAUTION:
Identify installation positions, and store them without mixing up.
6. Remove piston rings from piston. • Before removing piston rings, check the piston ring side clearance. Refer to EM-97, "
Inspection".
• Use suitable tool (A).
CAUTION:
• When removing piston rings, be careful not to damagethe piston.
• Be careful not to damage piston rings by expanding
them excessively.
10. Oil pressure switch 11. Top ring12. Second ring
13. Oil ring 14. Piston pin15. Piston
16. Connecting rod 17. Connecting rod bearing (upper) 18. Main bearing (upper)
19. Thrust bearing 20. Crankshaft key21. Connecting rod cap bolt
22. Connecting rod cap 23. Connecting rod bearing (lower) 24. Main bearing (lower)
25. Crankshaft 26. Pilot converter (A/T models) 27. Signal plate
28. Rear oil seal 29. Drive plate (A/T models)30. Reinforcement plate (A/T models)
31. Flywheel (M/T models) 32. Main bearing cap33. Main bearing cap bolt
A. Refer to Assembly procedure B. Refer to Assembly procedure
KBIA3365J
PBIC3233J
Revision: January 20102010 Versa

CYLINDER BLOCKEM-97
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18. Install knock sensor (1).
• Install connectors so that they are positioned towards the rearof the engine.
CAUTION:
• Never tighten bolt while holding the connector.
• If any impact by dropping is applied to knock sensor,
replace it with a new one.
NOTE:
• Make sure that there is no foreign material on the cylinder
block mating surface and the back surface of knock sensor.
• Make sure that knock sensor does not interfere with other parts.
19. Install crankshaft position sensor (POS) and cover. • Tighten bolts with it seated completely.
20. For the oil level gauge guide (1), fix the position (B) shown to the water inlet clip (A) after inserting to the cylinder block side.
21. Assembly is in the reverse order of disassembly after this step.
InspectionINFOID:0000000005398083
CRANKSHAFT END PLAY
• Measure the clearance between thrust bearings and crankshaft arm when crankshaft is moved fully forward or backward with a dial
indicator (A).
• If the measured value exceeds the limit, replace thrust bearings, and measure again. If it still exceeds the limit, replace crankshaft
also.
CONNECTING ROD SIDE CLEARANCE
• Measure the side clearance between connecting rod and crank-shaft arm with a feeler gauge (A).
• If the measured value exceeds the limit, replace connecting rod, and measure again. If it still exceeds the standard, replace crank-
shaft also.
PISTON TO PISTON PIN OIL CLEARANCE
Piston Pin Hole Diameter
: Engine front
PBIC3754E
PBIC3755E
Standard and Limit : Refer to EM-116, "Cylinder Block".
PBIC3762E
Standard : Refer to EM-116, "Cylinder Block".
PBIC3763E
Revision: January 20102010 Versa

EM-122
< SERVICE INFORMATION >[MR18DE]
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005398096
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:0000000005398097
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

PREPARATIONEM-127
< SERVICE INFORMATION > [MR18DE]
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ST16610001
(J-23907)
Pilot bushing puller
Removing crankshaft pilot bushing
KV11103000
( — )
Pulley puller Removing crankshaft pulley
KV991J0050
(J-44626)
Air fuel sensor Socket Loosening or tightening air fuel ratio sen-
sor
a: 22 mm (0.87 in)
KV10114400
(J-38365)
Heated oxygen sensor wrench Loosening or tightening rear heated oxy-
gen sensor
a: 22 mm (0.87 in)
KV11105210
(J-44716)
Stopper plate Securing drive plate and flywheel
KV10115600
(J-38958)
Valve oil seal drift Installing valve oil seal
Use side A.
a: 20 (0.79) dia
.
b: 13 (0.51) dia.
c: 10.3 (0.406) dia .
d: 8 (0.31) dia.
e: 10.7 (0.421)
f: 5 (0.20)
KV10115801
(—)
Oil filter wrench Removing and installing oil filter
a: 64.3 mm (2.531 in)
Tool number
(Kent-Moore No.)
Tool name
Description
NT045
NT676
LBIA0444E
NT636
ZZA0009D
S-NT603
S-NT375
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PREPARATIONEM-129
< SERVICE INFORMATION > [MR18DE]
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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 oxygen sensor (Use
with anti-seize lubricant shown below.)
a: J-43897-18 (18 mm dia.) for zirconia ox-
ygen sensor
b: J-43897-12 (12 mm dia.) for titania oxy-
gen sensor
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
E20 Torx® Socket
(J-45816) Removing and installing drive plate and fly-
wheel bolts
(Kent-Moore No.)
Tool name
Description
PBIC4013E
AEM488
AEM489
LBIA0285E
Revision: January 20102010 Versa

AIR CLEANER AND AIR DUCTEM-135
< SERVICE INFORMATION > [MR18DE]
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AIR CLEANER AND AIR DUCT
ComponentINFOID:0000000005398116
Removal and InstallationINFOID:0000000005398117
REMOVAL
1. Remove the engine room cover (1).
2. Remove the air duct (front).
3. Remove the air cleaner filter from the air cleaner case. Refer to
EM-136, "
Changing Air Cleaner Filter".
4. Remove the air duct (inlet) from the air cleaner case.
5. Remove the PCV hose.
6. Remove the air duct. • Add marks as necessary for easier installation.
7. Remove air cleaner case with the following procedure.
a. Remove battery. Refer to SC-5
.
b. Disconnect harness connector from mass air flow sensor.
c. Remove the air cleaner case.
8. Remove the mass air flow sensor from the air cleaner case, if necessary. CAUTION:
• Handle it carefully and avoid impacts.
• Do not touch sensor part.
1. Air cleaner filter 2. Holder 3. Air cleaner cover
4. Seal 5. Mass air flow sensor 6. Air duct
7. PCV hose 8. Air duct (Inlet) 9. Air duct (Front)
10. Clip 11. Resonator 12. Grommet
13. Air cleaner case A. To electric throttle control actuator B. To rocker cover
WBIA0770E
WBIA0845E
Revision: January 20102010 Versa

EM-140
< SERVICE INFORMATION >[MR18DE]
EXHAUST MANIFOLD
EXHAUST MANIFOLD
ComponentINFOID:0000000005398121
Removal and InstallationINFOID:0000000005398122
REMOVAL
1. Remove cowl top. Refer to
EI-22, "Removal and Installation".
2. Remove exhaust front tube. Refer to EX-11, "
Component".
3. Remove exhaust manifold cover.
4. Remove the air fuel ratio sensor 1, using Tool (A).
CAUTION:
Handle it carefully and avoid impacts.
5. Remove exhaust manifold side bolt of exhaust manifold stay.
1. Exhaust manifold cover 2. Exhaust manifold3. Gasket
4. Stud bolt 5. Bracket 6. Air fuel ratio sensor 1
7. Exhaust manifold stay Engine front
WBIA0778E
Tool number :KV991J0050 (J-44626)
WBIA0772E
Revision: January 20102010 Versa

EM-142
< SERVICE INFORMATION >[MR18DE]
EXHAUST MANIFOLD
3. Install exhaust manifold stay (2) in the direction as shown.
4. Install the air fuel ratio sensor 1, using Tool (A).
CAUTION:
• Handle it carefully and avoid impacts.
• Before installing a new air fuel ratio sensor, clean the
exhaust tube threads using suitable tool and approved
anti-seize lubricant.
• Do not over-tighten the air fuel ratio sensor. Doing so may
damage the air fuel ratio senso r, resulting in the MIL com-
ing on.
5. Installation of the remaining parts is in the reverse order of removal.
1 : Exhaust manifold
A : Upper mark : Engine front
PBIC3944E
Tool number : KV991J0050 (J-44626)
Oxygen sensor thread cleaner : (J-43897-12)
Oxygen sensor thread cleaner : (J-43897-18)
WBIA0772E
Revision: January 20102010 Versa