Infiniti M35/M45 Y50. Manual - part 564

PRECAUTIONS

EC-729

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B1 indicates the bank 1, B2 indicates the bank 2 as shown
in the figure.

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Do not operate fuel pump when there is no fuel in lines.

–

Fuel level sensor unit and fuel pump (1)

–

Fuel pressure regulator (2)

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Fuel tank temperature sensor (3)

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Tighten fuel hose clamps to the specified torque.

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Do not depress accelerator pedal when starting.

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Immediately after starting, do not rev up engine unneces-
sarily.

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Do not rev up engine just prior to shutdown.

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When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.

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Keep the antenna as far as possible from the electronic
control units.

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Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.

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Adjust the antenna and feeder line so that the standing-
wave radio can be kept smaller.

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Be sure to ground the radio to vehicle body.

PBIB1144E

PBIB2707E

SEF709Y

SEF708Y

EC-730

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PREPARATION

PREPARATION

PFP:00002

Special Service Tools

NBS0059G

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

Tool number
(Kent-Moore No.)
Tool name

Description

EG17650301
(J-33984-A)
Radiator cap tester 
adapter

Adapting radiator cap tester to radiator cap and 
radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)

KV10117100
(J-36471-A)
Heated oxygen 
sensor wrench

Loosening or tightening heated oxygen sensor 2 
with 22 mm (0.87 in) hexagon nut

KV10114400
(J-38365)
Heated oxygen 
sensor wrench

Loosening or tightening air fuel ratio sensor 1
a: 22 mm (0.87 in)

(J-44321)
Fuel pressure gauge 
kit

Checking fuel pressure

KV109E0010
(J-46209)
Break-out box

Measuring the ECM signals with a circuit tester

KV109E0080
(J-45819)
Y-cable adapter

Measuring the ECM signals with a circuit tester

S-NT564

S-NT379

S-NT636

LEC642

S-NT825

S-NT826

PREPARATION

EC-731

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Commercial Service Tools

NBS0059H

Tool name
(Kent-Moore No.)

Description

Leak detector 
i.e.: (J-41416)

Locating the EVAP leak

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

Applying positive pressure through EVAP service 
port

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

Checking fuel tank vacuum relief valve opening 
pressure

Socket wrench

Removing and installing engine coolant 
temperature sensor

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 
Zirconia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for 
Titania Oxygen Sensor

Anti-seize lubricant 

i.e.: (Permatex

TM

  

133AR or equivalent 
meeting MIL 
specification MIL-A-
907)

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

S-NT703

S-NT704

S-NT815

S-NT705

AEM488

S-NT779

EC-732

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ENGINE CONTROL SYSTEM

ENGINE CONTROL SYSTEM

PFP:23710

System Diagram

NBS0059I

PBIB2733E