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: Warning/Indicator lights (red)
For additional information on warnings
and indicators, see "Vehicle information
display - 5 inch (13 cm) Type A" or
"Vehicle information display - 7 inch (18cm)
Type B".
or
Brake warning
light
This light functions for both the parking
brake and the foot brake systems.
Parking brake indicator (if s ...
Heated seat switches (if so equipped)
WARNING
Do not use or allow occupants to use
the seat heater if you or the occupants
cannot monitor elevated seat temperatures
or have an inability to feel
pain in body parts that contact the
seat. Use of the seat heater by such
people could result in serious injury.
CAUTION
The battery could run ...
Tachometer
5 inch (13 cm) Type A (if so equipped)
The tachometer indicates engine speed in
revolutions per minute (rpm).
Do not rev the engine into the red zone 1.
7 inch (18 cm) Type B (if so equipped)
CAUTION
When engine speed approaches the
red zone, shift to a higher gear or reduce
engine speed. Operati ...