spark plugs replace NISSAN LATIO 2010 Service Repair Manual

EC-250
< COMPONENT DIAGNOSIS >[HR16DE]
P0300, P0301,
P0302, P0303, P0304 MISFIRE
7.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-112, "
Spark Plug".
NO >> Repair or clean spark plug. Then GO TO 8.
8.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-112, "
Spark
Plug".
9.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-23, "
Inspection".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10.CHECK FUEL PRESSURE
1. Install all removed parts.
2. Check fuel pressure. Refer to EC-496, "
Inspection".
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly”.
NO >> Repair or replace.
12.CHECK IGNITION TIMING
Check the following items. Refer to EC-20, "
BASIC INSPECTION : Special Repair Requirement".
For specification, refer to EC-502, "
Ignition Timing".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Follow the EC-20, "
BASIC INSPECTION : Special Repair Requirement".
13.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect corresponding A/F sensor 1 harness connector.
3. Disconnect ECM harness connector.
4. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
SEF156I
Spark should be generated.
Revision: January 20102010 Versa

P0420 THREE WAY CATALYST FUNCTIONEC-271
< COMPONENT DIAGNOSIS > [HR16DE]
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1. Reconnect the initial spark plugs.
2. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug
and the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-112, "
Spar k
Plug".
10.CHECK FUEL INJECTOR
1. Turn ignition switch OFF. Refer to EM-34, "
Removal and Installation".
2. Remove fuel injector assembly. Keep fuel hose and all fuel injectors connected to fuel tube.
3. Disconnect all ignition coil harness connectors.
4. Reconnect all fuel injector harness connectors disconnected.
5. Turn ignition switch ON.
Does fuel drip from fuel injector?
YES >> GO TO 11.
NO >> Replace the fuel injector(s) from which fuel is dripping.
11 .CHECK INTERMITTENT INCIDENT
Refer to EC-114, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> Replace three way catalyst assembly.
NO >> Repair or replace harness or connector Spark should be generated.
Revision: January 20102010 Versa

TROUBLE DIAGNOSISEC-585
< SERVICE INFORMATION > [MR18DE]
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TROUBLE DIAGNOSIS
Trouble Diagnosis IntroductionINFOID:0000000005532412
INTRODUCTION
The engine has an ECM to control major systems such as fuel con-
trol, ignition control, idle air control system, etc. The ECM accepts
input signals from sensors and instantly
drives actuators. It is essen-
tial that both input and output signals are proper and stable. At the
same time, it is important that there are no malfunctions such as vac-
uum leaks, fouled spark plugs, or other malfunctions with the engine.
It is much more difficult to diagnose an incident that occurs intermit-
tently rather than continuously. Most intermittent incidents are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only may not find t he cause of the incidents. A road
test with CONSULT-III (or GST) or a circuit tester connected should
be performed. Follow the Work Flow on "WORK FLOW".
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driv ability complaint. The customer
can supply good information about such incidents, especially inter-
mittent ones. Find out what symptoms are present and under what
conditions they occur. A Diagnosti c Worksheet like the example on
"Worksheet Sample" should be used.
Start your diagnosis by looking for conventional malfunctions first.
This will help troubleshoot drivability malfunctions on an electroni-
cally controlled engine vehicle.
WORK FLOW
Overall Sequence
MEF036D
SEF233G
SEF234G
Revision: January 20102010 Versa

EC-786
< SERVICE INFORMATION >[MR18DE]
DTC P0300 - P0304 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded metal portion.
OK or NG
OK >> GO TO 7.
NG >> Check ignition coil, power transistor and their circuits. Refer to EC-1019
.
7.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-223, "
Standard and Limit".
NG >> 1. Repair or clean spark plug. 2. GO TO 8.
8.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug
and the grounded portion.
OK or NG
OK >> INSPECTION END
NG >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-223, "
Standard
and Limit".
9.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-181, "
On-Vehicle Service".
OK or NG
OK >> GO TO 10.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10.CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-582, "
Fuel Pressure Check".
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check the following.
• Fuel pump and circuit (Refer to EC-1014
.)
• Fuel pressure regulator (Refer to EC-582, "
Fuel Pressure Check".)
• Fuel lines (Refer to FL-5, "
Checking Fuel Line".)
• Fuel filter for clogging
>> Repair or replace.
Spark should be generated.
SEF156I
Spark should be generated.
At idling: Approximately 350 kPa (3.57 kg/cm
2, 51 psi)
Revision: January 20102010 Versa

EC-808
< SERVICE INFORMATION >[MR18DE]
DTC P0420 THREE WAY CATALYST FUNCTION
• It might cause to damage the igni
tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7.
7.CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded metal portion.
OK or NG
OK >> GO TO 8.
NG >> Check ignition coil, power transistor and their circuits. Refer to EC-1019
.
8.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-223, "
Standard and Limit".
NG >> 1. Repair or clean spark plug.
2. GO TO 9.
9.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded portion.
OK or NG
OK >> INSPECTION END
NG >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-223, "
Standard
and Limit".
10.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Remove fuel injector assembly. Refer to EM-152, "
Removal and Installation".
Keep fuel hose and all fuel injectors connected to fuel tube.
3. Disconnect all ignition coil harness connectors.
4. Reconnect all fuel injector harness connectors disconnected.
5. Turn ignition switch ON. Make sure fuel does not drip from fuel injector.
OK or NG
OK (Does not drip.)>>GO TO 11.
NG (Drips.)>>Replace the fuel injector(s) from which fuel is dripping.
11 .CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
Spark should be generated.
SEF156I
Spark should be generated.
Revision: January 20102010 Versa

PERIODIC MAINTENANCEMA-9
< SERVICE INFORMATION >
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PERIODIC MAINTENANCE
Introduction of Periodic MaintenanceINFOID:0000000005394795
Two different maintenance schedules are provi ded, and should be used, depending upon the conditions in
which the vehicle is mainly operated. After 60,000 miles (96,000 km) or 48 months, continue the periodic
maintenance at the same mileage/time intervals.
Schedule 1INFOID:0000000005394796
Emission Control System Maintenance
Abbreviations: R = Replace. I = Inspect. Correct or r eplace if necessary. [ ]: At the mileage intervals only
Schedule 1Follow Periodic Maintenance Schedule 1 if your driving habits frequently includes
one or more of the following driving conditions:
• Repeated short trips of less than 5 miles (8 km).
• Repeated short trips of less than 10 miles (16 km) with outside temperatures re-
maining below freezing.
• Operating in hot weather in stop-and-go “rush hour” traffic.
• Extensive idling and/or low speed driving for long distances, such as police, taxi
or door-to-door delivery use.
• Driving in dusty conditions.
• Driving on rough, muddy, or salt spread roads.
• Towing a trailer, using a camper or a car-top carrier. Emission Control Sys-
tem Maintenance
MA-9
Chassis and Body
Maintenance
MA-9
Schedule 2Follow Periodic Maintenance Schedule 2 if none of the driving conditions shown
in Schedule 1 apply to your driving habits.
Emission Control Sys-
tem Maintenance
MA-11Chassis and Body
Maintenance
MA-11
MAINTENANCE OPERATION
MAINTENANCE INTERVAL
Reference Section -
Page or - Content Title
Perform at number of
miles, kilometers or
months, whichever
comes first. Miles x 1,000
(km x 1,000) Months 3.75
(6)3 7.5
(12) 6 11 . 2 5
(18) 9 15
(24) 12 18.75
(30)15 22.5
(36) 18 26.25
(42)21 30
(48) 24
Drive belt NOTE (1) MA-16
(HR)
MA-26
(MR)
Air cleaner filter NOTE (2) [R]EM-14
(HR)
EM-136
(MR)
EVAP vapor lines I*MA-25
(HR)
MA-36
(MR)
Fuel lines I*FL-5
Fuel filter NOTE (3) —
Engine coolant NOTE (4) CO-12
(HR)
CO-36
(MR)
Engine oil R R R R R R R R LU-8
(HR)
LU-18
(MR)
Engine oil filter (Use
genuine oil filter or
equivalent) RRRRRRRR
LU-9
(HR)
LU-20
(MR)
Spark plugs (Iridium/
platinum - tipped
type) Replace every 105,000 miles (169,000 km)
EM-18
(HR)
EM-149
(MR)
Intake and exhaust
valve clearance* NOTE (5) EM-114
(HR)
EM-223
(MR)
Revision: January 20102010 Versa

MA-10
< SERVICE INFORMATION >
PERIODIC MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts i f found
damaged.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Maintenance-free item. For service procedures, go to the FL section.
(4) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(5) Periodic maintenance is not required. However, if valve noise increases, inspect valve clearance.
* Maintenance items and intervals with “*” are recommended by NISSAN for reliable vehicle operation. The owner need not perform
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and inter vals are
required.
Chassis and Body Maintenance
Abbreviations: R = Replace. I = Inspect. Corr ect or replace if necessary. L = Lubricate.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference Section -
Page or - Content Title
Perform at number of
miles, kilometers or
months, whichever
comes first. Miles x
1,000
(km x
1,000)
Months 33.75
(54)27 37.5
(60) 30 41.25
(66)33 45
(72) 36 48.75
(78)39 52.5
(84) 42 56.25
(90)45 60
(96) 48
Drive belt NOTE
(1) I*EM-14
(HR)
EM-132
(MR)
Air cleaner filter NOTE
(2) [R]
EM-17
(HR)
EM-135
(MR)
EVAP vapor lines I*MA-25
(HR)
MA-36
(MR)
Fuel lines I*FL-5
Fuel filter NOTE
(3) —
Engine coolant NOTE
(4) R*
CO-12
(HR)
CO-36
(MR)
Engine oil R R R R R R R R LU-8
(HR)
LU-18
(MR)
Engine oil filter (Use
genuine oil filter or
equivalent) R R R R RRRR
LU-9
(HR)
LU-20
(MR)
Spark plugs (Iridium/
platinum - tipped type) Replace every 105,000 miles (169,000 km) EM-18
(HR)
EM-149
(MR)
Intake and exhaust
valve clearance* NOTE
(5) EM-114
(HR)
EM-223
(MR)
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference Section -
Page or -
Content Title
Perform at number of
miles, kilometers or
months, whichever
comes first. Miles x
1,000
(km x
1,000)
Months 3.75
(6)3 7.5
(12) 6 11 . 2 5
(18) 9 15
(24) 12 18.75
(30)15 22.5
(36) 18 26.25
(42)21 30
(48) 24
Brake lines & cables IIMA-45
Brake pads, rotors,
drums & linings IIII MA-45
MA-46
Manual transaxle oil or
automatic transaxle
fluid IIMT-11

(RS5F91R) MT-54

(RS6F94R)
AT- 1 7
(A/T)
CVT fluid NOTE (1) IICVT-14

(RE0F08B)
Revision: January 20102010 Versa

MA-12
< SERVICE INFORMATION >
PERIODIC MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belt if found
damaged or if the auto belt tensioner reading reaches the maximum limit.
(2) Maintenance-free item.
(3) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(4) Periodic maintenance is not required. However, if valve noise increases, inspect valve clearance.
Maintenance items and intervals with “*” are recommended by NISSAN for reliab le vehicle operation. The owner need not perform such
maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are
required.
Chassis and Body Maintenance
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. L = Lubricate.
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference
Section - Page
or - Content Ti- tle
Perform at number of miles,
kilometers or months, which-
ever comes first. Miles x
1,000
(km x
1,000)
Months 7.5
(12) 6 15
(24) 12 22.5
(36) 18 30
(48) 24 37.5
(60) 30 45
(72) 36 52.5
(84) 42 60
(96) 48
Drive belt NOTE (1) I*EM-14
(HR)
EM-132
(MR)
Air cleaner filter [R][R]EM-17
(HR)
EM-136
(MR)
EVAP vapor lines I*I*MA-25
(HR)
MA-36
(MR)
Fuel lines I*I*FL-5
Fuel filter NOTE (2) —
Engine coolant NOTE (3) R*CO-12
(HR)
CO-36
(MR)
Engine oil RR R RRRRR LU-8
(HR)
LU-18
(MR)
Engine oil filter (Use genuine
oil filter or equivalent.) RR R RRRRR LU-9
(HR)
LU-20
(MR)
Spark plugs (Iridium/plati-
num - tipped type) Replace every 105,000 miles (169,000 km) EM-18
(HR)
EM-149
(MR)
Intake and exhaust valve
clearance* NOTE (4)
EM-114
(HR)
EM-223
(MR)
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference Sec-
tion - Page or -
Content Title
Perform at number of miles, kilo-
meters or months, whichever
comes first. Miles x 1,000
(km x 1,000)
Months 7.5
(12)
6 15
(24)
12 22.5
(36)
18 30
(48)
24 37.5
(60)
30 45
(72)
36 52.5
(84)
42 60
(96)
48
B ra ke lin e s & cab le s IIII MA-45
Brake pads, rotors, drums & lin-
ings IIII
MA-45
MA-46
Manual transaxle oil or automatic
transaxle fluid IIIIMT-11

(RS5F91R)
MT-54

(RS6F94R)
AT- 1 7
(A/T)
C VT flu id NO TE (1) IIII CVT-15

(RE0F08B)
Steering gear & linkage, axle &
suspension parts II
PS-12
, MA-47
Tire rotation NOTE (2) WT-7
Fro n t d riv e s ha ft b oo ts IIII MA-47
Revision: January 20102010 Versa