Nissan Altima 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

    Idle air volume learning
     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 fol ...

    Other materials:

    Increasing fuel economy
    ● Keep your engine tuned up. ● Follow the recommended scheduled maintenance. ● Keep the tires inflated to the correct pressure. Low tire pressure increases tire wear and lowers fuel economy. ● Keep the wheels in correct alignment. Improper alignment increases tire wea ...

    Service data and specifications (SDS)
    Steering Wheel Steering Angle Steering Column STEERING COLUMN LENGTH TILT MECHANISM OPERATING RANGE Steering Gear STEERING OUTER SOCKET AND INNER SOCKET RACK STROKE Oil Pump Steering Fluid ...

    Precaution
    Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the dr ...