Infiniti G37 Coupe. Manual — part 460
INSPECTION AND ADJUSTMENT
EC-21
< BASIC INSPECTION >
[VQ37VHR]
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VVEL CONTROL SHAFT POSITION SENSOR ADJUSTMENT : Description
INFOID:0000000001736789
VVEL control shaft position sensor adjustment is an operation to adjust the initial position angle that is the
basis for the VVEL control shaft position sensor.
It must be performed each time VVEL actuator sub assembly is replaced.
CAUTION:
• It must be performed only on the replaced bank side.
• It must not be performed except when VVEL actuator sub assembly is replaced. If by any chance the
adjustment is performed, replace VVEL actuator sub assembly.
VVEL CONTROL SHAFT POSITION SENSOR ADJUSTMENT : Special Repair Re-
quirement
INFOID:0000000001736790
1.
START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
PERFORM VVEL CONTROL SHAFT POSITION SENSOR ADJUSTMENT
With CONSULT-III
1.
Turn ignition switch ON.
2.
Select “VVEL POS SEN ADJ PREP” in “WORK SUPPORT” mode with CONSULT-III.
3.
Touch “Start” and wait a few seconds.
4.
Make sure the “CMPLT” is displayed on CONSULT-III screen.
5.
Select “VVEL POSITION SEN- B1” or “VVEL POSITION SEN- B2” in “DATA MONITOR” mode with CON-
SULT-III.
6.
Loosen the VVEL control shaft position sensor mounting bolt (1).
7.
Turn the VVEL control shaft position sensor (2) right and left
while monitoring the output voltage of “VVEL POSITION SEN-
B1” or “VVEL POSITION SEN-B2” and adjust the output voltage
to be within the standard value.
8.
Tighten the VVEL control shaft position sensor mounting bolt.
9.
Reconfirm that the output voltage of “VVEL POSITION SEN- B1”
or “VVEL POSITION SEN- B2” is within the standard value.
NOTE:
If it varies from the standard value after the bolt is tightened, perform steps 6 to 8 again.
10. Turn ignition switch OFF and wait at least 10 seconds.
11. Start engine and warm it up to normal operating temperature.
12. Turn ignition switch OFF and wait at least 10 seconds.
13. Perform idle air volume learning. Refer to
EC-19, "IDLE AIR VOLUME LEARNING : Special Repair
.
>> INSPECTION END
3.
PERFORM VVEL CONTROL SHAFT POSITION SENSOR ADJUSTMENT
Without CONSULT-III
1.
Disconnect VVEL control shaft position sensor harness connector.
2.
Remove VVEL actuator motor relay.
3.
Turn ignition switch ON, wait at least 5 seconds and then turn OFF.
Voltage
: 500
±
48mV
: 7.0 N•m (0.71kg-m, 62in-lb)
Voltage
: 500
±
48mV
JMBIA0740ZZ
EC-22
< BASIC INSPECTION >
[VQ37VHR]
INSPECTION AND ADJUSTMENT
4.
Reconnect all harness connectors disconnected.
5.
Install VVEL actuator motor relay.
6.
Turn ignition switch ON and wait at least 5 seconds.
7.
Loosen the VVEL control shaft position sensor mounting bolt (1).
8.
Turn the VVEL control shaft position sensor (2) right and left
while monitoring the output voltage between the VVEL control
module terminals with a tester and adjust the output voltage to
be within the standard value.
9.
Tighten the VVEL control shaft position sensor mounting bolt.
10. Reconfirm that the output voltage of VVEL control shaft position sensor is within the standard value.
NOTE:
If it varies from the standard value after the bolt is tightened, perform steps 7 to 9 again.
11. Turn ignition switch OFF and wait at least 10 seconds.
12. Start engine and warm it up to normal operating temperature.
13. Turn ignition switch OFF and wait at least 10 seconds.
14. Perform idle air volume learning. Refer to
EC-19, "IDLE AIR VOLUME LEARNING : Special Repair
.
>> INSPECTION END
MIXTURE RATIO SELF-LEARNING VALUE CLEAR
MIXTURE RATIO SELF-LEARNING VALUE CLEAR : Description
INFOID:0000000001733925
This describes how to erase the mixture ratio self-learning value. For the actual procedure, follow the instruc-
tions in “Diagnosis Procedure”.
MIXTURE RATIO SELF-LEARNING VALUE CLEAR : Special Repair Requirement
INFOID:0000000001733926
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.
JMBIA0740ZZ
VVEL control module
Voltage
Bank
Connector
+
–
Terminal
Terminal
1
E15
3
4
500
±
48mV
2
5
6
: 7.0 N•m (0.71kg-m, 62in-lb)
VVEL control module
Voltage
Bank
Connector
+
–
Terminal
Terminal
1
E15
3 4
500
±
48mV
2
5
6
INSPECTION AND ADJUSTMENT
EC-23
< BASIC INSPECTION >
[VQ37VHR]
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3.
Clear mixture ratio self-learning value by touching “CLEAR”.
With GST
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF.
3.
Disconnect mass air flow sensor (bank 1) harness connector.
4.
Restart engine and let it idle for at least 5 seconds.
5.
Stop engine and reconnect mass air flow sensor (bank 1) harness connector.
6.
Select Service $03 with GST. Make sure DTC P0102 is detected.
7.
Select Service $04 with GST to erase the DTC P0102.
>> END
EC-24
< FUNCTION DIAGNOSIS >
[VQ37VHR]
ENGINE CONTROL SYSTEM
FUNCTION DIAGNOSIS
ENGINE CONTROL SYSTEM
System Diagram
INFOID:0000000001733927
1.
ECM
2.
Can communication
3.
VVEL control module
4.
EVAP canister purge volume control
solenoid valve
5.
EVAP service port
6.
EVAP canister vent control valve
7.
EVAP control system pressure sen-
sor
8.
EVAP canister
9.
Battery current sensor
10. Battery
11.
Fuel tank temperature sensor
12. Fuel level sensor
13. Fuel tank
14. Fuel pressure regulator
15. Fuel pump
16. Three way catalyst 2
17. Heated oxygen sensor 2
18. Three way catalyst 1
19. Engine oil temperature sensor
20. A/F sensor 1
21. Spark plug
22. PCV valve
23. Ignition coil (with power transistor)
24. VVEL actuator motor
JMBIA0856ZZ
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