2009 NISSAN LATIO fuel filter

P0456 EVAP CONTROL SYSTEM
EC-335
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P0456 EVAP CONTROL SYSTEM
DTC Logic INFOID:0000000004780206
DTC DETECTION LOGIC This diagnosis detects very small leaks in the EVAP line between fuel tank and EVAP canister purge volume
control solenoid valve, using the intake manifold vac uum in the same way as conventional EVAP small leak
diagnosis.
If ECM judges a leak which corresponds to a very small leak, the very small leak P0456 will be detected.
If ECM judges a leak equivalent to a small leak, EVAP small leak P0442 will be detected.
If ECM judges there are no leaks, the diagnosis will be OK.
CAUTION:
• Use only a genuine NISSAN fuel filler cap as a replacemen t. If an incorrect fuel filler cap is used, the
MIL may come on.
• If the fuel filler cap is not tigh tened properly, the MIL may come on.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0456 Evaporative emission
control system very
small leak (negative
pressure check) • EVAP system has a very small leak.
• EVAP system does not operate prop- erly. • Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• Fuel filler cap remains open or fails to close.
• Foreign matter caught in fuel filler cap.
• Leak is in line between intake manifold and EVAP
canister purge volume control solenoid valve.
• Foreign matter caught in EVAP canister vent con- trol valve.
• EVAP canister or fuel tank leaks
• EVAP purge line (pipe and rubber tube) leaks
• EVAP purge line rubber tube bent
• Loose or disconnected rubber tube
• EVAP canister vent control valve and the circuit
• EVAP canister purge volume control solenoid
valve and the circuit
• Fuel tank temperature sensor
• O-ring of EVAP canister vent control valve is miss-
ing or damaged
• EVAP canister is saturated with water
• EVAP control system pressure sensor
• Refueling EVAP vapor cut valve
• ORVR system leaks
• Fuel level sensor and the circuit
• Foreign matter caught in EVAP canister purge vol- ume control solenoid valve
• Drain filter PBIB1026E

EC-338< COMPONENT DIAGNOSIS >
[HR16DE]
P0456 EVAP CONTROL SYSTEM
Is the inspection result normal? YES >> GO TO 3.
NO >> Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Then retighten
until ratcheting sound is heard. 3.
CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 4. 4.
CHECK FUEL TANK VACUUM RELIEF VALVE
Refer to EC-340, " Component Inspection (Fuel filler cap) " .
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace fuel filler cap with a genuine one. 5.
CHECK FOR EVAP LEAK
Refer to EC-500, " Inspection " .
Is there any leak in EVAP line? YES >> Repair or replace.
NO >> GO TO 6. 6.
CHECK DRAIN FILTER
Refer to EC-341, " Component Inspection (Drain filter) " .
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace drain filter. 7.
CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following.
• EVAP canister vent control valve is installed properly.
Refer to EC-502, " Exploded View " .
• EVAP canister vent control valve. Refer to EC-304, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 8.
NO >> Repair or replace EVAP cani ster vent control valve and O-ring.8.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2. Check if water will drain from the EVAP canister.
Does water drain from EVAP canister? YES >> GO TO 9.
NO-1 >> With CONSULT-III: GO TO 11.
NO-2 >> Without CONSULT-III: GO TO 12. 9.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 1.9 kg (4.2 lb). PBIB1213E

P0456 EVAP CONTROL SYSTEM
EC-341
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3. Wipe clean valve housing.
4. Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
5. Check valve opening pressure and vacuum.
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2. 2.
REPLACE FUEL FILLER CAP
Replace fuel filler cap.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may
illuminate.
>> INSPECTION END
Component Inspection (Drain filter) INFOID:00000000048030971.
CHECK DRAIN FILTER
1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.
4. Blow air into port A and check that it flows freely out of port B.
5. Block port B.
6. Blow air into port A and check that there is no leakage.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace drain filter. SEF445Y
Pressure:
15.3 - 20.0 kPa (0.156 - 0.204 kg/cm 2
, 2.22 -
2.90 psi)
Vacuum: −6.0 to −3.3 kPa ( −0.061 to −0.034 kg/cm 2
,
− 0.87 to −0.48 psi) SEF943S
PBIB3641E

ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-451
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B: Cannot refuel/Fuel odor from the fuel
filler opening is strong while refueling.
Which symptom is present? A >> GO TO 2.
B >> GO TO 8. 2.
CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent c ontrol valve and EVAP control system pressure sensor
attached.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be l ess than 1.9 kg (4.2 lb).
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 4. 3.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Check if water will drain from EVAP canister.
Does water drain from the EVAP canister?YES >> GO TO 4.
NO >> GO TO 7. 4.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
>> GO TO 5. 5.
CHECK DRAIN FILTER
Refer to EC-455, " Component Inspection (Drain filter) " .
Is the inspection result normal? OK >> GO TO 6.
NO >> Replace drain filter. 6.
DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose. 7.
CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-453, " Component Inspection (Refueling EVAP vapor cut valve) " .
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace refueling EVAP vapor cut valve with fuel tank. 8.
CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent c ontrol valve and EVAP control system pressure sensor
attached.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be l ess than 1.9 kg (4.2 lb).
Is the inspection result normal? PBIB1213E

EC-452< COMPONENT DIAGNOSIS >
[HR16DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
YES >> GO TO 9.
NO >> GO TO 10. 9.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Check if water will drain from EVAP canister.
Does water drain from the EVAP canister? YES >> GO TO 10.
NO >> GO TO 13. 10.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
>> GO TO 11. 11.
CHECK DRAIN FILTER
Refer to EC-455, " Component Inspection (Drain filter) " .
Is the inspection result normal? OK >> GO TO 12.
NO >> Replace drain filter. 12.
DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose. 13.
CHECK VENT HOSES AND VENT TUBES
Check hoses and tubes between EVAP canister and refueling control valve for clogging, kink, looseness and
improper connection.
Is the inspection result normal? YES >> GO TO 14.
NO >> Repair or replace hoses and tubes. 14.
CHECK RECIRCULATION LINE
Check recirculation line for clogging, dents and cracks.
Is the inspection result normal? YES >> GO TO 15.
NO >> Replace fuel filler tube. 15.
CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-453, " Component Inspection (Refueli
ng EVAP vapor cut valve) " .
Is the inspection result normal? YES >> GO TO 16.
NO >> Replace refueling EVAP vapor cut valve with fuel tank. 16.
CHECK FUEL FILLER TUBE
Check fuel filler tube and hose connected to the fuel tank for clogging, dents and cracks.
Is the inspection result normal? YES >> GO TO 17.
NO >> Replace fuel filler tube. PBIB1213E

ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-455
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Is the inspection result normal? YES >> INSPECTION END
NO >> Replace refueling EVAP vapor cut valve with fuel tank.
Component Inspection (Drain filter) INFOID:00000000048065591.
CHECK DRAIN FILTER
1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.
4. Blow air into port A and check that it flows freely out of port B.
5. Block port B.
6. Blow air into port A and check that there is no leakage.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace drain filter. 1. Filler tube 2. Recirculation line 3. EVAP/ORVR line
4. Vacuum/pressure handy pump 5. Fuel tank BBIA0694E
PBIB3641E

Camshaft
EM-58Intake valve timing control
EM-49Intake valve
3EM-82 Exhaust valve
Exhaust Exhaust manifold/Tube/Muf- fler/Gasket 5 5 5 5 5 5 5 5 EM-31 EX-4
Three way catalyst
Lubrica-
tion Oil pan/Oil strainer/Oil pump/ Oil filter/Oil gallery/Oil cooler 5 5 5 5 5 5 5 5 EM-39 EM-42
LU-7
LU-9
Oil level (Low)/Filthy oil
LU-7Cooling Radiator/Hose/Radiator filler
cap
5 5 5 5 5 5 5 4 5 CO-14 CO-14
Thermostat 5
CO-23Water pump
CO-21Water gallery
CO-9Cooling fan
5CO-19Coolant level (Low)/Contami-
nated coolant CO-9NVIS (NISSAN Vehicle Immobilizer Sys-
tem — NATS) 1 1
BL-257 SYMPTOM
Reference pageHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code A AAB AC AD AE AF AG AH AJ AK AL AM HA

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4. Connect fuel hose for fuel pressure check (1) to fuel tube
(engine side) with clamp (2) as shown in the figure.
• No.2 spool (5)
• Wipe off oil or dirt from hose insertion part using cloth moist-
ened with gasoline.
• Apply proper amount of gasoline between top of the fuel tube
(3) and No.1 spool (4).
• Insert fuel hose for fuel pressure check until it touches the No.1 spool on fuel tube.
• Use NISSAN genuine hose clamp (part number: 16439 N4710 or 16439 40U00).
• When reconnecting fuel line, always use new clamps.
• Use a torque driver to tighten clamps.
• Install hose clamp to the positi on within 1 - 2 mm (0.04 - 0.08 in).
• Make sure that clamp screw does not contact adjacent parts.
5. Connect fuel tube adapter to quick connector. • A: Fuel pressure gauge
• B: Fuel hose for fuel pressure check
6. After connecting fuel hose for fuel pressure check, pull the hose with a force of approximately 98 N (10 kg, 22 lb) to confirm fuel
tube does not come off.
7. Turn ignition switch ON and check for fuel leakage.
8. Start engine and check for fuel leakage.
9. Read the indication of fuel pressure gauge. • Do not perform fuel pressure check with system operating.
Fuel pressure gauge may indicate false readings.
• During fuel pressure check, confirm for f uel leakage from fuel connection every 3 minutes.
10. If result is unsatisfactory, go to next step.
11. Check the following. • Fuel hoses and fuel tubes for clogging
• Fuel filter for clogging
• Fuel pump
• Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.
12. Before disconnecting Fuel Pressure Gauge and Fuel Pressure Adapter J-44321-6, release fuel pressure
to zero. Refer to "FUEL PRESSURE RELEASE". Tightening torque: 1 - 1.5 N·m
(0.1 - 0.15 kg-m, 9 - 13 in-lb)
At idling: Approximately 350 kPa (3.57 kg/cm 2
, 51 psi) PBIB2984E