Nissan Altima (L32) 2007-2012 Service Manual: Mixture ratio self-learning value
clear
Description
This describes how to erase the mixture ratio self-learning value. For the
actual procedure, follow the instructions
in “Diagnosis Procedure”.
Special Repair Requirement
1.START
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”.
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF.
3. Disconnect mass air flow sensor harness connector.
4. Restart engine and let it idle for at least 5 seconds.
5. Stop engine and reconnect mass air flow sensor 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
Description
Idle Air Volume Learning is a function of ECM to learn the idle air volume
that keeps each engine idle speed
within the specific range. It must be performed under any of the following ...
Other materials: Maintenance precautions
When performing any inspection or maintenance
work on your vehicle, always take
care to prevent serious accidental injury
to yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
Park the vehicle on a level surface,
apply the parking br ...
Sun visors
To block glare from the front, swing
down the main sun visor 1.
To block glare from the side, remove the
main sun visor 2 from the center
mount and swing the visor to the side.
To extend the sun visor, slide in or out as
needed 3.
CAUTION
Do not store the sun visor before returning ...
2.5L 4 cylinder (PR25DD engine model)
The following shows the maintenance
schedule.
Choose the maintenance schedule
needed based on your vehicle driving
conditions.
After 120,000 miles (192,000 km)/144
months, continue maintenance at the
same mileage/time interval.
5,000 miles/(8,000 km)/6 months
Perform at number of miles, kilometers ...
Idle air volume learning
Function diagnosis