2001 NISSAN ALMERA o2 sensor

Special Service ToolsNJFE0029
Tool number
Tool nameDescription
KV10114400
Heated oxygen sensor
wrench
NT636
Loosening or tightening front and rear
heated oxygen sensors
a: 22 mm (0.87 in)
KV999G0010
Fuel tank lock ring
socket
NT057
Removing and installing fuel tank lock
ring
Commercial Service ToolsNJFE0030
Tool number
Tool nameDescription
Oxygen sensor thread
cleaner
AEM488
Reconditioning the exhaust system threads
before installing a new oxygen sensor (Use
with anti-seize lubricant shown below.)
a: 18 mm dia. with pitch 1.5 mm for zir-
conia oxygen sensor
b: 12 mm dia. with pitch 1.25 mm for
titania oxygen sensor
Anti-seize lubricant
(Permatex 133AR or
equivalent meeting MIL
specification MIL-A-
907)
AEM489
Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
PREPARATIONQG
Special Service Tools
FE-2

Fuel Pump, Fuel Level Sensor Unit and Fuel
Filter
NJFE0007
SFE671A
JFE613A
REMOVALNJFE0007S01For SedanNJFE0007S01011. Release fuel pressure from fuel line.
Refer to EC-40, ªFuel Pressure Releaseº.
2. Disconnect battery ground cable.
3. Open fuel filler lid and filler cap.
4. Remove rear seat cushion. Refer to BT-60, ªRemoval and
Installationº.
5. Remove inspection hole cover under the rear seat.
JFE608A
6. Disconnect electrical connector.
7. Disconnect the quick connectors.
+For disconnect of quick connectors, refer to step 8. of ªFuel
Tank Removalº.
8. Remove the six screws and retainer.
CAUTION:
Use genuine bolts only when fixing retainer.
FUEL SYSTEMQG
Fuel Pump, Fuel Level Sensor Unit and Fuel Filter
FE-12

SFE564A
9. Pull out the fuel level sensor unit and fuel pump.
+Do not damage the arm of the fuel level sensor unit and
fuel tank temperature sensor.
JFE614A
10. Remove fuel pump as shown in the figure at left.
+Put mating marks on fuel pump and fuel filter for correct instal-
lation.
JFE615A
11. Disconnect fuel pump harness connector.
JFE616A
12. Remove fuel filter from fuel level sensor unit as shown in the
figure at left.
+Put mating marks on fuel filter and fuel level sensor unit for
correct installation.
JFE613A
For HatchbackNJFE0007S01021. Disconnect battery ground cable.
2. Open fuel filler lid and filler cap.
3. Remove rear seat cushion. Refer to BT-60, ªRemoval and
Installationº.
4. Remove inspection hole cover under the rear seat.
FUEL SYSTEMQG
Fuel Pump, Fuel Level Sensor Unit and Fuel Filter (Cont'd)
FE-13

SFE639A
5. Disconnect electrical connector.
6. Disconnect the quick connectors.
+For disconnect of quick connectors, refer to step 7. of ªFuel
Tank Removalº.
SFE376A
7. Remove lock ring using a lock ring socket (SST).
SFE648A
8. Pull out the fuel level sensor unit and fuel pump.
+Do not damage the arm of the fuel level sensor unit and
fuel tank temperature sensor.
INSTALLATIONNJFE0007S02Installation is in reverse order of removal.
FUEL SYSTEMQG
Fuel Pump, Fuel Level Sensor Unit and Fuel Filter (Cont'd)
FE-14

SMA211A
Checking Exhaust SystemNJFE0010Check exhaust pipes, muffler and mounting for improper
attachment, leaks, cracks, damage, chafing or deterioration.
Removal and InstallationNJFE0005CAUTION:
+Always replace exhaust gaskets with new ones when
reassembling.
+With engine running, check all tube connections for
exhaust gas leaks, and entire system for unusual noises.
+Check to ensure that mounting brackets and mounting
insulators are installed properly and free from undue
stress. Improper installation could result in excessive
noise or vibration.
+Discard any heated oxygen sensor which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
+Before installing a new oxygen sensor, clean exhaust sys-
tem threads using oxygen sensor thread cleaner tool and
apply anti-seize lubricant.
+Do not overtorque the oxygen sensor. Doing so may
cause damage to the oxygen sensor, resuiting in the MIL
coming on.
+Be sure to use genuine exhaust system parts which are
designed especially for heat resistance, corrosion
resistance, and shape.
+Perform the operation with the exhaust system fully
cooled down because the system will be heated just after
the engine stops.
+Be careful not to cut your hand on the insulator edge.
EXHAUST SYSTEMQG
Checking Exhaust System
FE-15

Removal and InstallationNJFE0013CAUTION:
+Do not disassemble the accelerator pedal assembly. Do not remove the sensors and the switches
from the assembly.
+Avoid impact from dropping etc. during handling.
+Be careful to keep the assembly away from water.
+Do not adjust the adjusting screw (painted white) of the accelerator work unit.
+When the connector of the accelerator sensor is disconnected, reconnect the connector, and touch
ªCLEARº in ªOFF ACCEL PO SIGº of the active test using the CONSULT-II. Or, warm up the engine,
then leave it idling for approximately 10 minutes.
SFE629A
InspectionNJFE0020+Check that the accelerator pedal moves smoothly within the
whole operation range.
+Check that the accelerator pedal securely returns to the origi-
nal position.
+Check that the drum of the accelerator work unit can be fully
opened.
+Refer to EC-641, ªBasic Inspectionº for the inspection of the
accelerator work unit and the accelerator pedal switch.
ACCELERATOR CONTROL SYSTEMYD
Removal and Installation
FE-19

SMA803A
Checking Fuel LinesNJFE0019Inspect fuel lines and tank for improper attachment, leaks, cracks,
damage, chafing and deterioration.
If necessary, repair or replace.
MMA104A
CAUTION:
Tighten high-pressure rubber hose clamp so that clamp end is
3 mm (0.12 in) from hose end.
Tightening torque specifications are the same for all rubber
hose clamps.
Ensure that screw does not contact adjacent parts.
SMA794C
Water Draining from Fuel FilterNJFE0028DRAINING WATERNJFE0028S01Open drain valve at the bottom of fuel filter.
FUEL FILTER CHECKNJFE0028S02Check fuel filter for fuel leakage, damage and other abnormal
sings.
JFE598A
Changing Fuel FilterNJFE0021REMOVALNJFE0021S011. Take out air duct and upper air cleaner case.
2. Remove connector from water in fuel filter sensor.
3. Remove fuel filter using a fuel filter wrench (commercial ser-
vice tool).
CAUTION:
Do not spill the fuel during removal. If the fuel is spilt, imme-
diately wipe it off. Be especially careful to prevent the fuel
from adhering to the insulators of the engine mounts.
4. Remove water in fuel filter sensor from fuel filter.
FUEL SYSTEMYD
Checking Fuel Lines
FE-20

JFE624A
INSTALLATIONNJFE0021S02+Install in the reverse order of removal.
+Replace the O-ring of the fuel level warning sensor with a new
one.
+Tighten the fuel filter so that the sealing face contacts the
packing, then retighten it manually by approximately 2/3 turn.
+After installation, operate the priming pump vertically to per-
form air bleeding.
Refer to FE-22, ªBleeding Fuel Filterº.
Bleeding Fuel FilterNJFE00231. After the repair, bleed air from the piping by pumping the prim-
ing pump up and down until it becomes heavy.
2. To start the engine, rotate the starter for a maximum of 30
seconds.
To start the engine more quickly, crank the engine while pump-
ing the priming pump (requires two workers).
3. If the engine does not start after rotating the starter for a maxi-
mum of 30 seconds, stop it once, and pump the priming pump
again until it becomes heavy.
4. Rotate the starter again until the engine starts running.
5. After the engine starts, let it idle for at least 1 minute to stabi-
lize the behavior.
+When air is bled completely, the pumping of the priming
pump suddenly becomes heavy. Stop the operation at that
time.
+If it is difficult to bleed air by the pumping of the priming
pump (the pumping of the priming pump does not become
heavy), disconnect the fuel supply hose between the fuel
filter and the injection pump. Then, perform the operation
described above, and make sure that fuel comes out. (Use
a pan, etc. so as not to spill fuel. Do not let fuel get on
engine and other parts.) After that, connect the hose, then
bleed air again.
+Start engine and let it idle for at least one minute after
performing air bleeding.
DEF017
Checking Priming PumpNJFE0024Before checking priming pump, make sure that fuel filter is
filled with fuel.
1. Disconnect fuel return hose.
Place a suitable container beneath hose end.
2. Pump priming pump and check that the fuel overflows from the
hose end. If not, replace priming pump.
FUEL SYSTEMYD
Changing Fuel Filter (Cont'd)
FE-21