fuel cap release NISSAN LATIO 2011 Service Repair Manual

RADIATORCO-41
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Do not remove radiator cap when the engine is
hot. Serious burns could occur from high-pressure
engine coolant escaping from radiator. Wrap a thick cl oth around the cap. Slowly turn it a quarter of a
turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
REMOVAL
1. Remove engine under cover. Refer to EI-15, "Removal and Installation".
2. Drain engine coolant from radiator. Refer to CO-36, "
Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belt.
3. Remove air duct (inlet). Refer to EM-135
.
4. Remove reservoir tank as follows:
a. Disconnect reservoir tank hose.
b. Release the tab (A) in the direction shown by the arrow ( ).
c. Lift up while removing the reservoir tank hose, and remove it.
5. Disconnect harness connector from fan motor, and move harness aside.
6. Disconnect CVT or A/T fluid cooler hoses if equipped. • Install plug to avoid leakage of CVT or A/T fluid if equipped.
7. Remove radiator hoses (upper and lower).
8. Remove radiator core support cover. Refer to BL-19
.
9. Remove cooling fan assembly.
10. Remove radiator core support (upper) bolts, bolts of stationary part on the radiator core support side and clip. Lift radiator from
radiator (upper) mount part of radiator core support (upper) (2).
11. Move radiator assembly (1) to the rearward direction of vehicle, and then lift it upward to remove.
CAUTION:
Do not damage or scratch A/C condenser if equipped and
radiator core when removing.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not damage or scratch A/C condenser if eq uipped and radiator core when installing.
InspectionINFOID:0000000006413348
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
Fluids and Lubricants".
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
PBIC3800E
PBIC3805E
Revision: May 2010 2011 Versa

P0420 THREE WAY CATALYST FUNCTIONEC-277
< COMPONENT DIAGNOSIS > [HR16DE]
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P0420 THREE WAY CATALYST FUNCTION
DTC LogicINFOID:0000000005929949
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage capacity decreases, the heated oxygen sensor 2
switching frequency will increase.
When the frequency ratio of A/F sensor 1 and heated oxygen sensor
2 approaches a specified limit value, the three way catalyst (mani-
fold) malfunction is diagnosed.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 7.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Do not hold engine speed for more than the specified minutes below.
>> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-I
With CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Make sure that “COOLAN TEMP /S” indication is more than 70°C (158°F).
If not, warm up engine and go to next step w hen “COOLAN TEMP/S” indication reaches 70 °C (158° F).
7. Open engine hood.
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUPPORT” mode with CONSULT-III.
9. Rev engine up to 2,000 to 3,000 rpm and hold it for 3 consecutive minutes then release the accelerator
pedal completely.
10. Check the indication of “CATALYST”.
Which is displayed on CONSULT-III screen?
SEF484YB
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0420 Catalyst system efficiency
below threshold • Three way catalyst (manifold) does not
operate properly.
• Three way catalyst (manifold) does not
have enough oxygen storage capacity. • Three way catalyst (manifold)
• Exhaust tube
• Intake air leaks
• Fuel injector
• Fuel injector leaks
• Spark plug
• Improper ignition timing
Revision: May 2010
2011 Versa

P0456 EVAP CONTROL SYSTEMEC-341
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NO >> Go to
EC-341, "Diagnosis Procedure".
Component Function CheckINFOID:0000000005929999
1.PERFORM COMPONENT FUNCTION CHECK
With GST
CAUTION:
• Do not use compressed air, doing so may damage the EVAP system.
• Do not start engine.
• Do not exceeded 4.12 kPa (0.042 kg/cm
2, 0.6 psi).
1. Attach the EVAP service port adapter securely to the EVAP service port.
2. Set the pressure pump and a hose.
3. Also set a vacuum gauge via 3-way connector and a hose.
4. Turn ignition switch ON.
5. Connect GST and select Service $08.
6. Using Service $08 control the EVAP canister vent control valve
(close).
7. Apply pressure and make sure the following conditions are sat-
isfied.
Pressure to be applied: 2.7 kPa (0.028 kg/cm
2, 0.39 psi)
Time to be waited after the pressure drawn in to the EVAP
system and the pressure to be dropped: 60 seconds and
the pressure should not be dropped more than 0.4 kPa
(0.004 kg/cm
2, 0.06 psi).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-341, "
Diagnosis Procedure".
2.RELEASE PRESSURE
1. Disconnect GST.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Restart engine and let it idle for 90 seconds.
5. Keep engine speed at 2,000 rpm for 30 seconds.
6. Turn ignition switch OFF. NOTE:
For more information, refer to GST Instruction Manual.
>> INSPECTION END
Diagnosis ProcedureINFOID:0000000005930000
1.CHECK FUEL FILLER CAP DESIGN
1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace with genuine NISSAN fuel filler cap. Refer to FL-10, "
Component".
2.CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap clockwise.
SEF462UI
SEF915U
Revision: May 2010 2011 Versa

EVAPORATIVE EMISSION SYSTEMEC-529
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Check EVAP canister as follows:
1. Block port
(B).
2. Blow air into port (A) and confirm that it flows freely out of port
(C) .
3. Release blocked port (B).
4. Apply vacuum pressure to port (B) and confirm that vacuum
pressure exists at the ports (A) and ( C).
5. Block port (A) and ( B).
6. Apply pressure to port (C) and check that there is no leakage.
FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FILLER CAP)
1. Wipe clean valve housing.
2. Check valve opening pressure and vacuum.
3. If out of specificat ion, replace fuel filler cap as an assembly.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incor-
rect fuel filler cap is used, the MIL may come on.
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-829, "Component Inspection".
FUEL TANK TEMPERATURE SENSOR
Refer to EC-773, "Component Inspection".
EVAP CANISTER VENT CONTROL VALVE
Refer to EC-840, "Component Inspection".
EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-850, "Component Inspection".
EVAP SERVICE PORT
PBIB1212E
SEF445Y
Pressure: 15.3 - 20.0 kPa
(0.156 - 0.204 kg/cm
2, 2.22 - 2.90 psi)
Vacuum: −6.0 to −3.4 kPa
(− 0.061 to −0.035 kg/cm
2, −0.87 to −0.48 psi)
SEF943S
Revision: May 2010 2011 Versa

DTC P0420 THREE WAY CATALYST FUNCTIONEC-805
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DTC P0420 THREE WAY CATALYST FUNCTION
On Board Diagnosis LogicINFOID:0000000006341971
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage capacity decreases, the heated oxygen sensor 2
switching frequency will increase.
When the frequency ratio of air fuel ratio (A/F) sensor 1 and heated
oxygen sensor 2 approaches a specified limit value, the three way
catalyst (manifold) malfunction is diagnosed.
DTC Confirmation ProcedureINFOID:0000000006341972
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-III
TESTING CONDITION:
Do not hold engine speed for more
than the specified minutes below.
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to the normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Make sure that “COOLAN TEMP/S” indicates more than 70 °C (158° F).
If not, warm up engine and go to next step when “COOLAN TEMP/S” indication reaches to 70°C (158° F).
7. Open engine hood.
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUPPORT” mode with CONSULT-III.
9. Rev engine up to 2,000 to 3,000 rpm and hold it for 3 consecutive minutes then release the accelerator pedal completely.
If “INCMP” of “CATALYST” changed to “CMPLT”, go to step 12.
10. Wait 5 seconds at idle.
11. Rev engine up to 2,000 to 3,000 rpm and maintain it unt il “INCMP” of “CATALYST” changes to “CMPLT” (It
will take approximately 5 minutes).
If not “CMPLT”, stop engine and cool it down to less than 70 °C (158° F) and then retest from step 1.
12. Check 1st trip DTC. If 1st trip DTC is detected, go to EC-806, "
Diagnosis Procedure".
Overall Function CheckINFOID:0000000006341973
Use this procedure to check the overall function of the three way catalyst (manifold). During this check, a 1st
trip DTC might not be confirmed.
SEF484YB
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0420
0420 Catalyst system efficiency
below threshold • Three way catalyst (manifold) does not operate
properly.
• Three way catalyst (manifold) does not have enough oxygen storage capacity. • Three way catalyst (manifold)
• Exhaust tube
• Intake air leaks
• Fuel injector
• Fuel injector leaks
• Spark plug
• Improper ignition timing
Revision: May 2010
2011 Versa

PRECAUTIONSEM-5
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Precaution for Removal and DisassemblyINFOID:0000000005930915
• When instructed to use special service tools, use the spec
ified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equiva lent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally opposite, and so on. If the order of loosening is specif ied, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000005930916
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000005930917
• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust. Before assembly, oil sliding surfaces well.
• Release air within route after draining coolant.
• Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for
leakage.
Parts Requiring Angular TighteningINFOID:0000000005930918
• Use an angle wrench for the final tightening of the following engine parts:
- Cylinder head bolts
- Camshaft sprocket (INT)
- Main bearing cap bolts
- Connecting rod cap nuts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angulartightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and coated with engine oil.
Precaution for Liquid GasketINFOID:0000000005930919
REMOVAL OF LIQUID GASKET SEALING
Tool number : KV10112100 (BT-8653-A)
Revision: May 2010 2011 Versa

EM-8
< PREPARATION >[HR16DE]
PREPARATION
Commercial Service Tools
INFOID:0000000005930921
EM03470000
(J-8037)
Piston ring compressor Installing piston assembly into cylinder bore
KV11103000
( — )
Pulley puller Removing crankshaft pulley
Quick connector release Removing fuel tube quick connectors in en- gine room
(Available in SEC. 164 of PARTS CATALOG:
Part No. 16441 6N210)
1. Press stand: ST13030020
( — )
2. Center shaft: KV10114120
( — )
3. Drift: KV10109730
( — )
4. Spring: ST13030030
( — )
5. Center cap: KV10110310
( — ) Installing and removing piston pin
KV11105210
(J-44716)
Stopper plate Fixing drive plate and flywheel
WS39930000
(—)
Tube presser Pressing the tube of liquid gasket
Tool number
(Kent-Moore No.)
Tool name
Description
S-NT044
NT676
PBIC0198E
PBIC3873E
ZZA0009D
NT052
Revision: May 2010
2011 Versa

FUEL INJECTOR AND FUEL TUBEEM-33
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FUEL INJECTOR AND FUEL TUBE
Exploded ViewINFOID:0000000005930941
CAUTION:
Never remove or disassemble part
s unless instructed as shown.
Removal and InstallationINFOID:0000000005930942
WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
REMOVAL
1. Release the fuel pressure. Refer to EC-499, "Inspection".
2. Disconnect battery negative terminal. Refer to SC-7, "
Removal and Installation".
3. Remove intake manifold. Refer to EM-27, "
Exploded View".
1. Quick connector cap 2. Fuel feed hose 3. Fuel tube
4. Fuel tube protector 5. O-ring (black) 6. Clip
7. Fuel injector 8.O-ring (green)
PBIC3663E
Revision: May 2010 2011 Versa

EM-34
< ON-VEHICLE REPAIR >[HR16DE]
FUEL INJECTOR AND FUEL TUBE
4. Disconnect quick connector with the following procedure. Dis-
connect fuel feed hose from fuel tube.
NOTE:
There is no fuel return path.
a. Remove quick connector cap (1) from quick connector connec- tion.
b. Disconnect fuel feed hose from hose clamp.
c. With the sleeve side of quick connector release facing quick connector, install quick connector release
onto fuel tube.
d. Insert quick connector release into quick connector until sleeve contacts and goes no further. Hold quick connector release on
that position.
CAUTION:
Inserting quick connector re lease hard will not disconnect
quick connector. Hold qui ck connector release where it
contacts and goes no further.
e. Draw and pull out quick connector straight from fuel tube. CAUTION:
• Pull quick connector holding “A” position.
• Do not pull with lateral force applied. O-ring inside quickconnector may be damaged.
• Prepare container and cloth beforehand as fuel will leak out.
• Avoid fire and sparks.
• Keep parts away from heat source. Especially, be careful when welding is performed around them.
• Do not expose parts to battery electrolyte or other acids.
• Do not bend or twist connection between quick co nnector and fuel feed hose during installation/
removal.
• To keep clean the connecting portion and to avoid dam-
age and foreign materials, cover them completely with
plastic bags or something similar.
5. Disconnect harness connector from fuel injector.
1 : Quick connector cap
PBIC3771E
PBIC3664E
KBIA0702E
PBIC2205E
Revision: May 2010 2011 Versa

EM-154
< SERVICE INFORMATION >[MR18DE]
FUEL INJECTOR AND FUEL TUBE
FUEL INJECTOR AND FUEL TUBE
ComponentINFOID:0000000005931014
Removal and InstallationINFOID:0000000005931015
WARNING:
• Put a “CAUTION: FLAMMABLE”
sign in the workshop.
• Be sure to work in a well ventilate d area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
CAUTION:
• Apply new engine oil to parts before installing the parts, as shown above.
• Do not remove or disassemble parts unless instructed as shown.
REMOVAL
1. Release the fuel pressure. Refer to EC-582, "Fuel Pressure Check".
2. Disconnect the battery negative terminal. Refer to SC-7, "
Removal and Installation".
3. Remove quick connector cap (1) from quick connector connec- tion.
1. Bracket 2. Bracket 3. Fuel tube
4. Clip 5. Fuel injector6. O-ring (green)
7. O-ring (black)
WBIA0779E
PBIC3664E
Revision: May 2010 2011 Versa