Nissan Quest E52. Instruction — part 562

EC-458

< PERIODIC MAINTENANCE >

[VQ35DE]

EVAP LEAK CHECK

5.

Locate the leakage using a leak detector (commercial service
tool). Refer to

EC-49, "EVAPORATIVE EMISSION SYSTEM :

System Description"

.

SEF200U

POSITIVE CRANKCASE VENTILATION

EC-459

< PERIODIC MAINTENANCE >

[VQ35DE]

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POSITIVE CRANKCASE VENTILATION

Work Procedure

INFOID:0000000009651311

1.

CHECK PCV VALVE

With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace PCV valve. Refer to .

EM-52, "Exploded View"

PBIB1589E

EC-460

< REMOVAL AND INSTALLATION >

[VQ35DE]

ECM

REMOVAL AND INSTALLATION

ECM

Removal and Installation

INFOID:0000000009651312

CAUTION:

Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to

EC-133, "Work Procedure"

.

REMOVAL

1.

Remove battery. Refer to

PG-105, "Exploded View"

.

2.

Disconnect ECM harness connectors. Refer to

PG-5, "Harness Connector"

.

3.

Remove ECM mounting nuts (1), and then remove ECM (A).

INSTALLATION

Install in the reverse order of removal.

JSBIA1367GB

SERVICE DATA AND SPECIFICATIONS (SDS)

EC-461

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VQ35DE]

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Idle Speed

INFOID:0000000009651314

*: Under the following conditions

• A/C switch: OFF

• Electric load: OFF (Lights, heater fan & rear window defogger)

• Steering wheel: Kept in straight-ahead position

Ignition Timing

INFOID:0000000009651315

*: Under the following conditions

• A/C switch: OFF

• Electric load: OFF (Lights, heater fan & rear window defogger)

• Steering wheel: Kept in straight-ahead position

Calculated Load Value

INFOID:0000000009651316

Mass Air Flow Sensor

INFOID:0000000009651317

*: Engine is warmed up to normal operating temperature and running under no load.

Condition

Specification

No load* (in P or N position)

650

±

50 rpm

Condition

Specification

No load* (in P or N position)

12

±

2

°

BTDC

Condition

Specification (Using CONSULT or GST)

At idle

10 – 35 %

At 2,500 rpm

10 – 35 %

Supply voltage

Battery voltage (11 – 14 V)

Output voltage at idle (in N position)

0.9 – 1.2 V*

Mass air flow (Using CONSULT or GST)

2.0 – 6.0 g/s at idle*

7.0 – 20.0 g/s at 2,500 rpm*