Fuel injection amount learning process (diesel-powered vehicles)Fuel injection amount learning process (diesel-powered vehicles)  - Starting and stopping the engine - Starting and driving - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

To keep exhaust emissions and engine noise low, the engine very occasionally performs a learning process for the fuel injection amount.

The engine sounds slightly different from usual while the learning process is taking place. The change in the engine sound does not indicate a fault.

    See also:

    Warning display list (when the ignition switch is “ON”)
    ...

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    Other interrupt displays (when the ignition switch is “ON”)
    The operation status of each system is displayed on the information screen. Refer to the appropriate page for the system for further details. This informs you that a periodic inspection is due. ...