2007 NISSAN TIIDA fuel cap release

P0420 THREE WAY CATALYST FUNCTION
EC-205
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P0420 THREE WAY CATALYST FUNCTION
DTC LogicINFOID:0000000001670968
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of heated oxygen
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 heated oxygen sensor 1 and heated
oxygen sensor 2 approaches a specified limit value, the three way
catalyst (manifold) 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 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.
10. Check the indication of “CATALYST”.
Which is displayed on CONSULT-III screen?
SEF484YF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0420Catalyst system efficien-
cy below threshold Three way catalyst (manifold) does not oper-
ate 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

EC-870
< COMPONENT DIAGNOSIS >[MR18DE]
P0420 THREE WAY CATALYST FUNCTION
P0420 THREE WAY CATALYST FUNCTION
DTC LogicINFOID:0000000001161837
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of heated oxygen
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 heated oxygen sensor 1 and heated
oxygen sensor 2 approaches a specified limit value, the three way
catalyst (manifold) 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 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.
10. Check the indication of “CATALYST”.
Which is displayed on CONSULT-III screen?
SEF484YF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0420Catalyst system efficien-
cy below threshold Three way catalyst (manifold) does not oper-
ate 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

EM-8
< PRECAUTION >[HR16DE]
PRECAUTIONS
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precaution for Drain CoolantINFOID:0000000001527635
 Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000001527636
 Before starting work, make sure no fire or spark producing items are in the work area.
 Release fuel pressure before disassembly.
 After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000001527637
 When instructed to use special service tools, use the specified 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 equivalent, 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 specified, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000001527638
 Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000001527639
 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:0000000001527640
 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 angular
tightening)
 Do not use a torque value for final tightening. Tool number : KV10112100 (BT-8653-A)

EM-12
< PREPARATION >[HR16DE]
PREPARATION
Commercial Service Tools
INFOID:0000000001381383
EM03470000
Piston ring compressorInstalling piston assembly into cylinder bore
KV11103000
Pulley pullerRemoving 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
Stopper plateFixing drive plate and flywheel Tool number
Tool nameDescription
S-NT044
NT676
PBIC0198E
PBIC3873E
ZZA0009D

FUEL INJECTOR AND FUEL TUBE
EM-35
< ON-VEHICLE REPAIR >[HR16DE]
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FUEL INJECTOR AND FUEL TUBE
Exploded ViewINFOID:0000000001381403
CAUTION:
Never remove or disassemble parts unless instructed as shown.
Removal and InstallationINFOID:0000000001381404
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.
 Never smoke while servicing fuel system. Keep open flames and sparks away from the work area.
REMOVAL
1. Release the fuel pressure. Refer to EC-377, "Inspection" (EURO-OBD), EC-681, "Inspection" (WITHOUT
EURO-OBD).
2. Remove intake manifold. Refer to EM-29, "
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

EM-36
< ON-VEHICLE REPAIR >[HR16DE]
FUEL INJECTOR AND FUEL TUBE
3. 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 (SST) 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 release hard will not disconnect
quick connector. Hold quick 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.
 Never pull with lateral force applied. O-ring inside quick
connector 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.
 Never expose parts to battery electrolyte or other acids.
 Never bend or twist connection between quick connector 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.
4. Disconnect harness connector from fuel injector.
1 : Quick connector cap
PBIC3771E
PBIC3664E
KBIA0702E
PBIC2205E

PRECAUTIONS
EM-135
< PRECAUTION >[MR18DE]
C
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F
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K
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MA
EM
N
P O
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precaution for Drain CoolantINFOID:0000000001337765
 Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000001337766
 Before starting work, make sure no fire or spark producing items are in the work area.
 Release fuel pressure before disassembly.
 After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000001337767
 When instructed to use special service tools, use the specified 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 equivalent, 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 specified, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000001337768
 Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000001337769
 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:0000000001337770
 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 angular
tightening)
 Do not use a torque value for final tightening. Tool number : KV10112100 (BT-8653-A)

EM-162
< ON-VEHICLE REPAIR >[MR18DE]
FUEL INJECTOR AND FUEL TUBE
FUEL INJECTOR AND FUEL TUBE
ComponentINFOID:0000000001337793
Removal and InstallationINFOID:0000000001337794
REMOVAL
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.
1. Release the fuel pressure. Refer to EC-1035, "
Inspection".
2. Remove quick connector cap (1) from quick connector connec-
tion.
1. Bracket 2. Bracket 3. Fuel tube
4. Clip 5. Fuel injector 6. O-ring (green)
7. O-ring (black)
WBIA0779E
PBIC3664E