Nissan Maxima. Manual - part 526

EC-588

< PRECAUTION >

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PRECAUTIONS

• Before replacing ECM, perform ECM Terminals and Reference

Value inspection and check ECM functions properly. Refer to

EC-522, "Reference Value"

.

• Handle mass air flow sensor carefully to avoid damage.

• Never clean mass air flow sensor with any type of detergent.

• Never disassemble electric throttle control actuator.

• Even a slight leakage in the air intake system can cause seri-

ous incidents.

• Never shock or jar the camshaft position sensor (PHASE),

crankshaft position sensor (POS).

• After performing each TROUBLE DIAGNOSIS, perform DTC

Confirmation Procedure or Component Function Check.

The DTC should not be displayed in the DTC Confirmation

Procedure if the repair is completed. The Component Func-

tion Check should be a good result if the repair is completed.

• When measuring ECM signals with a circuit tester, never allow

the two tester probes to contact.

Accidental contact of probes will cause a short circuit and

damage the ECM power transistor.

• Never use ECM ground terminals when measuring input/out-

put voltage. Doing so may result in damage to the ECM's tran-

sistor. Use a ground other than ECM terminals, such as the

ground.

MEF040D

JSBIA1315ZZ

SEF348N

PRECAUTIONS

EC-589

< PRECAUTION >

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• B1 indicates bank 1, B2 indicates bank 2 as shown in the fig-

ure.

• Never operate fuel pump when there is no fuel in lines.

• Tighten fuel hose clamps to the specified torque.

• Never depress accelerator pedal when starting.

• Immediately after starting, never rev up engine unnecessarily.

• Never rev up engine just prior to shutdown.

• When installing C.B. ham radio or a mobile phone, be sure to

observe the following as it may adversely affect electronic

control systems depending on installation location.

- Keep the antenna as far as possible from the electronic con-

trol units.

- Keep the antenna feeder line more than 20 cm (8 in) away

from the harness of electronic controls.

Never let them run parallel for a long distance.

- Adjust the antenna and feeder line so that the standing-wave

ratio can be kept smaller.

- Be sure to ground the radio to vehicle body.

SEC893C

SEF709Y

SEF708Y

EC-590

< PREPARATION >

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PREPARATION

PREPARATION

PREPARATION

Special Service Tools

INFOID:0000000010095252

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tools

INFOID:0000000010095253

Tool number
(Kent-Moore No.)
Tool name

Description

(J-44321)
Fuel pressure gauge 
kit

Checks fuel pressure

(J-44321-6)
Fuel pressure adapter

Connects fuel pressure gauge to quick connector 
type fuel lines

LEC642

LBIA0376E

Tool name
(Kent-Moore No.)

Description

(J-45488)
Quick connector re-
lease

Removes fuel tube quick connectors in engine 
room

Leakage detector 
i.e.: (J-41416)

Locates the EVAP leakage

EVAP service port 
adapter
i.e.: (J-41413-OBD)

Applys positive pressure via the EVAP service port

PBIC0198E

S-NT703

S-NT704

PREPARATION

EC-591

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Fuel filler cap adapter
i.e.: (MLR-8382)

Checks fuel tank vacuum relief valve opening 
pressure

Socket wrench

Removes and installs engine coolant temperature 
sensor. Refer to 

CO-24

.

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

Reconditions 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)

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

Tool name
(Kent-Moore No.)

Description

S-NT815

S-NT705

AEM488

S-NT779