Nissan X-Trail 32. Manual - part 825

POSITIVE CRANKCASE VENTILATION

EC-429

< PERIODIC MAINTENANCE >

[MR20DD]

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POSITIVE CRANKCASE VENTILATION

Inspection

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1.

CHECK PCV VALVE

1.

Start the engine and let it idle.

2.

Replace PCV valve from the rocker cover. Refer to 

EM-54, "Exploded View"

.

3.

Check that a properly working valve makes a hissing noise as
air passes through it.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace PCV valve. Refer to 

EM-54, "Exploded View"

.

PBIB1589E

EC-430

< REMOVAL AND INSTALLATION >

[MR20DD]

ECM

REMOVAL AND INSTALLATION

ECM

Removal and Installation

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EXPLODED VIEW

CAUTION:

Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to 

EC-141, "Work Procedure"

.

REMOVAL

1.

Remove air duct.

2.

Remove the resonator. Refer to 

EM-30, "Exploded View"

.

3.

Disconnect atmospheric pressure sensor harness connector.

4.

Remove mounting bolts and the atmospheric  pressure sensor .

5.

Remove the hose from the atmospheric pressure sensor .

6.

Disconnect ECM harness connectors. Refer to 

PG-7, "Harness Connector"

 (lever locking type).

7.

Remove ECM mounting nuts, and then remove ECM.

INSTALLATION

Install in the reverse order of removal.

ECM

Battery tray

hose

Atmospheric  pressure sensor

: Vehicle front

JSBIA4560ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

EC-431

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Idle Speed

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*: 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

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*: 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

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Mass Air Flow Sensor

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Condition

Specification

No load* (in P or N position)

650 

±

 50 rpm (CVT models)

700 

±

 50 rpm (M/T models)

Condition

Specification

No load* (in P or N position)

0 

±

 2

°

 BTDC

Condition

Specification

At idle

5 – 35 %

At 2,500 rpm

5 – 35 %

Condition

Specification

At idle

1.0 – 4.0 g/s

At 2,500 rpm

2.0 – 12.0 g/s

EC-432

< HOW TO USE THIS MANUAL >

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HOW TO USE THIS SECTION

HOW TO USE THIS MANUAL

HOW TO USE THIS SECTION

Information

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Both “VDC” and “ESP” are used in this manual. These indicate the same system.