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 ...

    Function diagnosis
    ...

    Other materials:

    Service data and specifications (SDS)
    Standard and Limit GENERAL SPECIFICATIONS DRIVE BELTS CYLINDER HEAD * Approximately 80°C (176°F) Available Valve Lifter Valve Spring CAMSHAFT AND CAMSHAFT BEARING CYLINDER BLOCK PISTON, PISTON RING, AND PISTON PIN Available Piston Piston Ring CONNECT ...

    Moving Object Detection (MOD) (if so equipped)
    The Moving Object Detection (MOD) system can inform the driver of moving objects behind the vehicle when backing out of garages, maneuvering in parking lots and in other such instances. The MOD system detects moving objects by using image processing technology on the image shown in the displ ...

    Booster seats
    Precautions on booster seats WARNING If a booster seat and seat belt are not used properly, the risk of a child being injured in a sudden stop or collision greatly increases: – Make sure the shoulder portion of the belt is away from the child’s face and neck and the lap portion of the b ...