Nissan Teana J32. Manual - part 409
EC-174
< COMPONENT DIAGNOSIS >
[VQ25DE, VQ35DE]
P0133, P0153 A/F SENSOR 1
2.
PERFORM DTC CONFIRMATION PROCEDURE-I
With CONSULT-III
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF and wait at least 10 seconds.
3.
Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1minute under no load.
4.
Let engine idle for 1 minute.
5.
Select “A/F SEN1(B1) P1278/P1279” (for DTC P0133) or “A/F SEN1(B2) P1288/P1289” (for DTC P0153)
of “A/F SEN1” in “DTC WORK SUPPORT” mode with CONSULT-III.
6.
Touch “START”.
Is COMPLETED displayed?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
PERFORM DTC CONFIRMATION PROCEDURE-II
Check that “OK” is displayed after touching “SELF-DIAG RESULT”.
Is OK displayed?
YES
>> INSPECTION END
NO
>> Go to
4.
PERFORM DTC CONFIRMATION PROCEDURE-III
1.
After perform the following procedure, “TESTING” will be displayed on the CONSULT-III screen.
-
Increase the engine speed up to between 4,000 and 5,000 rpm and maintain that speed for 10 seconds.
-
Fully release accelerator pedal and then let engine idle for about 10 seconds.
If “TESTING” is not displayed after 10 seconds, refer to
EC-124, "Component Function Check"
2.
Wait for about 20 seconds at idle under the condition that “TESTING” is displayed on the CONSULT-III
screen.
3.
Check that “TESTING” changes to “COMPLETED”.
If “TESTING” changed to “OUT OF CONDITION”, refer to
EC-124, "Component Function Check"
.
4.
Check that “OK” is displayed after touching “SELF-DIAG RESULT”.
Is OK displayed?
YES
>> INSPECTION END
NO
>> Go to
5.
CHECK MIXTURE RATIO SELF-LEARNING VALUE
With GST
1.
Start engine and warm it up to normal operating temperature.
2.
Select Service $01 with GST.
3.
Calculate the total value of “Short-term fuel trim” and “Long-term fuel trim” indications.
Is the total percentage within
±
15%?
YES
>> GO TO 7.
NO
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the following.
• Intake air leaks
• Exhaust gas leaks
• Incorrect fuel pressure
• Lack of fuel
• Fuel injector
• Incorrect PCV hose connection
• PCV valve
• Mass air flow sensor
>> Repair or replace malfunctioning part.
7.
PERFORM DTC CONFIRMATION PROCEDURE-IV
1.
Turn ignition switch OFF and wait at least 10 seconds.