Nissan Altima L32. Instruction — part 360
INSPECTION AND ADJUSTMENT
EC-561
< BASIC INSPECTION >
[QR25DE EXCEPT FOR CALIFORNIA]
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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.
EC-564, "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-565, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
.
>> GO TO 5.
5.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
EC-565, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
.
>> GO TO 6.
6.
PERFORM IDLE AIR VOLUME LEARNING
Perform
EC-566, "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 TARGET IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to
EC-564, "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
.
• Check crankshaft position sensor (POS) and circuit. Refer to
.
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 NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
EC-563, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement"
.
>> GO TO 4.
10.
CHECK IGNITION TIMING
1. Run engine at idle.
PBIA8513J
EC-562
< BASIC INSPECTION >
[QR25DE EXCEPT FOR CALIFORNIA]
INSPECTION AND ADJUSTMENT
2. Check ignition timing with a timing light.
For procedure, refer to
EC-564, "IGNITION TIMING : Special
.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-565, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
>> GO TO 12.
12.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
EC-565, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
.
>> GO TO 13.
13.
PERFORM IDLE AIR VOLUME LEARNING
Perform
EC-566, "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 TARGET IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to
EC-564, "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-564, "IGNITION TIMING : Special
.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
EM-52, "Removal and Installation"
Is the inspection result normal?
YES
>> GO TO 17.
NO
>> Repair the timing chain installation. Then GO TO 4.
1
: Timing indicator
ALBIA0048ZZ
1
: Timing indicator
ALBIA0048ZZ
INSPECTION AND ADJUSTMENT
EC-563
< BASIC INSPECTION >
[QR25DE EXCEPT FOR CALIFORNIA]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
17.
DETECT MALFUNCTIONING PART
Check the following.
• Check camshaft position sensor (PHASE) and circuit. Refer to
.
• Check crankshaft position sensor (POS) and circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 18.
NO
>> Repair or replace. Then GO TO 4.
18.
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 NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
EC-563, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement"
.
>> GO TO 4.
19.
INSPECTION END
If ECM is replaced during this BASIC INSPECTION procedure, go to
EC-27, "ADDITIONAL SERVICE WHEN
REPLACING CONTROL UNIT : Special Repair Requirement"
.
>> INSPECTION END
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
INFOID:0000000004349578
When replacing ECM, this procedure must be performed.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000004349579
1.
PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS
EC-563, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-
>> GO TO 2.
2.
PERFORM VIN REGISTRATION
EC-565, "VIN REGISTRATION : Special Repair Requirement"
.
>> GO TO 3.
3.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
Refer to
EC-565, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
>> GO TO 4.
4.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
EC-565, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
.
>> GO TO 5.
5.
PERFORM IDLE AIR VOLUME LEARNING
EC-566, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
EC-564
< BASIC INSPECTION >
[QR25DE EXCEPT FOR CALIFORNIA]
INSPECTION AND ADJUSTMENT
>> END
IDLE SPEED
IDLE SPEED : Description
INFOID:0000000004349580
This describes how to check the idle speed. For the actual procedure, follow the instructions in “BASIC
INSPECTION”.
IDLE SPEED : Special Repair Requirement
INFOID:0000000004349581
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:0000000004349582
This describes how to check the ignition timing. For the actual procedure, follow the instructions in “BASIC
INSPECTION”.
IGNITION TIMING : Special Repair Requirement
INFOID:0000000004349583
1.
CHECK IGNITION TIMING
1. Attach timing light to No. 1 igniton coil (1) wire as shown.
2. Check ignition timing.
>> INSPECTION END
VIN REGISTRATION
VIN REGISTRATION : Description
INFOID:0000000004349584
VIN Registration is an operation to registering 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).
2
: Timing light
: Vehicle front
ALBIA0065ZZ
1
: Timing indicator
ALBIA0048ZZ
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