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

    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 ...

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    BCM
    Diagnosis Procedure 1. CHECK FUSE AND FUSIBLE LINK Check if the following BCM fuse or fusible link are blown. Is the fuse or fusible link blown? YES >> Replace the blown fuse or fusible link after repairing the affected circuit. NO >> GO TO 2 2. CHECK POWER SUPPLY CIRCUIT 1 ...

    Intake valve timing control
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *: This signal is sent to the ECM through CAN communication line SYSTEM DESCRIPTION This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve. The ECM receives signals s ...

    Low-pressure flexible hose
    Removal and Installation for Low-Pressure Flexible Hose QR25DE Removal 1. Discharge the refrigerant. Refer to HA-32, "HFC-134a (R-134a) Service Procedure". 2. Remove the low-pressure flexible hose. Refer to HA-31, "Component". CAUTION: Cap or wrap the joint of the h ...