Nissan Altima L32. Instruction — part 482
INSPECTION AND ADJUSTMENT
EC-1049
< BASIC INSPECTION >
[VQ35DE]
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2. Rev engine between 2,000 and 3,000 rpm two or 3 times under
no load, then run engine at idle speed for approximately 1
minute.
3. Check idle speed.
For procedure, refer to
EC-1052, "IDLE SPEED : Special Repair
.
For specification, refer to
.
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-1053, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair
.
>> GO TO 5.
5.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
EC-1053, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
.
>> GO TO 6.
6.
PERFORM IDLE AIR VOLUME LEARNING
Perform
EC-1053, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
.
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 IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to
EC-1052, "IDLE SPEED : Special Repair Requirement"
.
For specification, refer to
.
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-1297, "Diagnosis Procedure"
• Check crankshaft position sensor (POS) and circuit. Refer to
EC-1293, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace malfunctioning part.Then GO TO 4.
9.
CHECK ECM FUNCTION
1. Substitute with a non-malfunctioning ECM to check ECM function. (ECM may be the cause of the incident,
although this is rare.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
SEC-15, "ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement"
(COUPE models) or
SEC-214, "ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement"
>> GO TO 4.
10.
CHECK IGNITION TIMING
1. Run engine at idle.
PBIA8513J
EC-1050
< BASIC INSPECTION >
[VQ35DE]
INSPECTION AND ADJUSTMENT
2. Check ignition timing with a timing light.
For procedure, refer to
EC-1052, "IGNITION TIMING : Special Repair Requirement"
For specification, refer to
.
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-1053, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair
.
>> GO TO 12.
12.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
EC-1053, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
.
>> GO TO 13.
13.
PERFORM IDLE AIR VOLUME LEARNING
Perform
EC-1053, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
.
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 IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to
EC-1052, "IDLE SPEED : Special Repair Requirement"
.
For specification, refer to
.
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-1052, "IGNITION TIMING : Special Repair Requirement"
For specification, refer to
.
Is the inspection result normal?
YES
>> GO TO 19.
NO
>> GO TO 16.
16.
CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to
Is the inspection result normal?
YES
>> GO TO 17.
NO
>> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
17.
DETECT MALFUNCTIONING PART
Check the following.
• Check camshaft position sensor (PHASE) and circuit. Refer to
EC-1297, "Diagnosis Procedure"
• Check crankshaft position sensor (POS) and circuit. Refer to
EC-1293, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> GO TO 18.
NO
>> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
INSPECTION AND ADJUSTMENT
EC-1051
< BASIC INSPECTION >
[VQ35DE]
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18.
CHECK ECM FUNCTION
1. Substitute with a non-malfunctioning ECM to check ECM function. (ECM may be the cause of the incident,
although this is rare.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
EC-1051, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement"
.
>> GO TO 4.
19.
INSPECTION END
If ECM is replaced during this BASIC INSPECTION procedure, perform
WHEN REPLACING CONTROL UNIT : Special Repair Requirement"
.
>> INSPECTION END
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
INFOID:0000000004361943
When replacing ECM, the following procedure must be performed.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000004361944
1.
PERFORM INITIALIZATION OF NVIS (NATS) SYSTEM AND REGISTRATION OF ALL NVIS (NATS) IGNI-
TION KEY IDS
SEC-15, "ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement"
(COUPE models)
SEC-214, "ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement"
(SEDAN models).
>> GO TO 2.
2.
PERFORM VIN REGISTRATION
EC-1052, "VIN REGISTRATION : Special Repair Requirement"
>> GO TO 3.
3.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
EC-1053, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
>> GO TO 4.
4.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
EC-1053, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
.
>> GO TO 5.
5.
PERFORM IDLE AIR VOLUME LEARNING
EC-1053, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
.
>> END
IDLE SPEED
IDLE SPEED : Description
INFOID:0000000004361945
This describes how to check the idle speed. For the actual procedure, follow the instructions in “BASIC
INSPECTION”.
EC-1052
< BASIC INSPECTION >
[VQ35DE]
INSPECTION AND ADJUSTMENT
IDLE SPEED : Special Repair Requirement
INFOID:0000000004361946
1.
CHECK IDLE SPEED
With CONSULT-III
Check idle speed in “DATA MONITOR” mode with CONSULT-III.
With GST
Check idle speed with Service $01 of GST.
>> INSPECTION END
IGNITION TIMING
IGNITION TIMING : Description
INFOID:0000000004361947
This describes how to check the ignition timing. For the actual procedure, follow the instructions in “BASIC
INSPECTION”.
IGNITION TIMING : Special Repair Requirement
INFOID:0000000004361948
1.
CHECK IGNITION TIMING
1. Attach timing light to loop wires (2) as shown.
-
Intake manifold collector (1)
-
Timing light pick-up lead (3)
-
: Vehicle front
2. Check ignition timing.
>> INSPECTION END
VIN REGISTRATION
VIN REGISTRATION : Description
INFOID:0000000004361949
VIN Registration is an operation to register VIN in ECM. It must be performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM may be required for Inspection & Maintenance (I/M).
VIN REGISTRATION : Special Repair Requirement
INFOID:0000000004361950
1.
CHECK VIN
Check the VIN of the vehicle and note it. Refer to
GI-21, "Model Variation - Coupe"
>> GO TO 2.
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