Nissan March K13. Manual - part 230

MIXTURE RATIO SELF-LEARNING VALUE CLEAR

EC-381

< BASIC INSPECTION >

[HR12DE (TYPE 2)]

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MIXTURE RATIO SELF-LEARNING VALUE CLEAR

Description

INFOID:0000000006036902

This describes how to erase the mixture ratio self-learning value. For the actual procedure, follow the instruc-
tions in “Diagnosis Procedure”.

Work Procedure

INFOID:0000000005886497

1.

START

With CONSULT-III

1.

Start engine and warm it up to normal operating temperature.

2.

Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode with CONSULT-III.

3.

Clear mixture ratio self-learning value by touching “CLEAR”.

 Without CONSULT-III

1.

Start engine and warm it up to normal operating temperature.

2.

Turn ignition switch OFF.

3.

Disconnect manifold absolute pressure (MAP) sensor harness connector.

4.

Restart engine and let it idle for at least 5 seconds.

5.

Stop engine and reconnect manifold absolute pressure (MAP) sensor harness connector.

6.

Check DTC. Make sure DTC P0107 is detected.

7.

Erase the DTC P0107.

>> END

EC-382

< BASIC INSPECTION >

[HR12DE (TYPE 2)]

BASIC INSPECTION

BASIC INSPECTION

Work Procedure

INFOID:0000000005886498

1.

INSPECTION START

1.

Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.

2.

Open engine hood and check the following:

-

Harness connectors for improper connections

-

Wiring harness for improper connections, pinches and cut

-

Vacuum hoses for splits, kinks and improper connections

-

Hoses and ducts for leaks

-

Air cleaner clogging

-

Gasket

3.

Confirm that electrical or mechanical loads are not applied.

-

Headlamp switch is OFF.

-

Air conditioner switch is OFF.

-

Rear window defogger switch is OFF.

-

Steering wheel is in the straight-ahead position, etc.

4.

Start engine and warm it up until engine coolant temperature
indicator points to the middle of gauge.
Ensure engine stays below 1,000 rpm.

5.

Run engine at about 2,000 rpm for about 2 minutes under no
load.

6.

Make sure that no DTC is displayed with CONSULT-III or ECM
[Diagnostic Test Mode II (self-diagnostic results)].

Is any DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

REPAIR OR REPLACE

Repair or replace components as necessary according to corresponding Diagnostic Procedure.

>> GO TO 3

3.

CHECK TARGET IDLE SPEED

1.

Run engine at about 2,000 rpm for about 2 minutes under no load.

SEF983U

SEF976U

SEF977U

BASIC INSPECTION

EC-383

< BASIC INSPECTION >

[HR12DE (TYPE 2)]

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2.

Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.

3.

Check idle speed.
For procedure, refer to 

EC-520, "Inspection"

.

For specification, refer to 

EC-527, "Idle Speed"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> GO TO 4.

4.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

1.

Stop engine.

2.

Perform 

EC-377, "Work Procedure"

.

>> GO TO 5.

5.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform 

EC-378, "Work Procedure"

.

>> GO TO 6.

6.

PERFORM IDLE AIR VOLUME LEARNING

Perform 

EC-379, "Work Procedure"

.

Is Idle Air Volume Learning carried out successfully?

YES

>> GO TO 7.

NO

>> Follow the instruction of IDLE AIR VOLUME LEARNING. Then GO TO 4.

7.

CHECK TARGET IDLE SPEED AGAIN

1.

Start engine and warm it up to normal operating temperature.

2.

Check idle speed.
For procedure, refer to 

EC-520, "Inspection"

.

For specification, refer to 

EC-527, "Idle Speed"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART

Check the Following.
• Check camshaft position sensor (PHASE) and circuit. Refer to 

EC-432, "Component Inspection"

.

• Check crankshaft position sensor (POS) and circuit. Refer to 

EC-428, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace. Then GO TO 4.

9.

CHECK ECM FUNCTION

1.

Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)

2.

Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to 

SEC-36,

"ECM : Description"

 (With intelligent key system), 

SEC-142, "ECM : Description"

 (Without intelligent key

system).

>> GO TO 4.

10.

CHECK IGNITION TIMING

1.

Run engine at idle.

PBIA8513J

EC-384

< BASIC INSPECTION >

[HR12DE (TYPE 2)]

BASIC INSPECTION

2.

Check ignition timing with a timing light.
For procedure, refer to 

EC-521, "Inspection"

.

For specification, refer to 

EC-527, "Ignition Timing"

.

-

Timing indicator (1)

Is the inspection result normal?

YES

>> GO TO 19.

NO

>> GO TO 11.

11.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

1.

Stop engine.

2.

Perform 

EC-377, "Work Procedure"

.

>> GO TO 12.

12.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform 

EC-378, "Work Procedure"

.

>> GO TO 13.

13.

PERFORM IDLE AIR VOLUME LEARNING

Perform 

EC-379, "Work Procedure"

.

Is idle air volume learning carried out successfully?

YES

>> GO TO 14.

NO

>> Follow the instruction of IDLE AIR VOLUME LEARNING. Then GO TO 4.

14.

CHECK TARGET IDLE SPEED AGAIN

1.

Start engine and warm it up to normal operating temperature.

2.

Check idle speed.
For procedure, refer to 

EC-520, "Inspection"

.

For specification, refer to 

EC-527, "Idle Speed"

.

Is the inspection result normal?

YES

>> GO TO 15.

NO

>> GO TO 17.

15.

CHECK IGNITION TIMING AGAIN

1.

Run engine at idle.

2.

Check ignition timing with a timing light.
For procedure, refer to 

EC-521, "Inspection"

.

For specification, refer to 

EC-527, "Ignition Timing"

.

-

Timing indicator (1)

Is the inspection result normal?

YES

>> GO TO 19.

NO

>> GO TO 16.

16.

CHECK TIMING CHAIN INSTALLATION

Check timing chain installation. Refer to 

EM-43, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 17.

NO

>> Repair the timing chain installation. Then GO TO 4.

MBIB1331E

MBIB1331E