Nissan Altima L32. Manual - part 357

PREPARATION

EC-549

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Oxygen sensor thread 
cleaner
i.e.: (J-43897-18)
(J-43897-12)

Reconditioning the exhaust system threads before 
installing a new oxygen sensor. Use with anti-
seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for Zirco-
nia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for Tita-
nia Oxygen Sensor

Anti-seize lubricant 
i.e.: (Permatex

TM

 

133AR or equivalent 
meeting MIL specifica-
tion MIL-A-907)

Lubricating oxygen sensor thread cleaning tool 
when reconditioning exhaust system threads.

Tool name
(Kent-Moore No.)

Description

AEM488

S-NT779

EC-550

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FUEL PRESSURE

ON-VEHICLE MAINTENANCE

FUEL PRESSURE

Inspection

INFOID:0000000004349566

FUEL PRESSURE RELEASE

 With CONSULT-III

1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.

 With CONSULT-III

1. Remove fuel pump fuse located in IPDM E/R.
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.

FUEL PRESSURE CHECK

CAUTION:

Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.

NOTE:

• Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel

pressure cannot be completely released because L32 models do not have fuel return system.

• Use fuel pressure gauge kit [SST: (J-44321)] to check fuel pressure.
1. Release fuel pressure to zero.
2. Connect fuel tube (B) adapter to quick connector.

3. Turn ignition switch ON and check for fuel leakage.
4. Start engine and check for fuel leakage.
5. Read the indication of fuel pressure gauge.

6. If result is unsatisfactory, check fuel hoses and fuel tubes for

clogging.

If OK, Replace “fuel filter and fuel pump assembly”.

If NG, Repair or replace.

A

: Fuel pressure gauge

C

: Fuel feed hose

At idling : Approximately 350 kPa (3.57 kg/cm

2

, 51 psi)

ALBIA0090ZZ

EVAP LEAK CHECK

EC-551

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EVAP LEAK CHECK

Inspection

INFOID:0000000004349567

CAUTION:

• Do not use compressed air or a high pressure pump.
• Do not exceed 4.12 kPa (0.042 kg/cm

2

, 0.6 psi) of pressure in EVAP system.

NOTE:

• Do not start engine.

• Improper installation of EVAP service port adapter [commercial service tool: (J-41413-OBD)] to the EVAP

service port may cause a leak.

 WITH CONSULT-III

1. To locate the EVAP leak, install EVAP service port adapter [com-

mercial service tool: (J-41413-OBD)] and pressure pump to

EVAP service port.

2. Turn ignition switch ON.
3. Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT”

mode with CONSULT-III.

4. Touch “START”. A bar graph (Pressure indicating display) will

appear on the screen.

5. Apply positive pressure to the EVAP system until the pressure

indicator reaches the middle of the bar graph.

6. Remove EVAP service port adapter [commercial service tool: (J-

41413-OBD)] and hose with pressure pump.

7. Locate the leak using a leak detector [commercial service tool:

(J-41416)]. Refer to 

EC-86, "System Diagram"

.

 WITHOUT CONSULT-III

1. To locate the EVAP leak, install EVAP service port adapter [com-

mercial service tool: (J-41413-OBD)] and pressure pump to

EVAP service port.

2. Apply battery voltage between the terminals of EVAP canister

vent control valve to make a closed EVAP system.

3. To locate the leak, deliver positive pressure to the EVAP system

until pressure gauge points reach 1.38 to 2.76 kPa (0.014 to
0.028 kg/cm

2

, 0.2 to 0.4 psi).

4. Remove EVAP service port adapter [commercial service tool: (J-

41413-OBD)] and hose with pressure pump.

SEF462UA

SEF200U

SEF462UA

EC-552

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EVAP LEAK CHECK

5. Locate the leak using a leak detector [commercial service tool:

(J-41416)]. Refer to 

EC-86, "System Diagram"

.

SEF200U