okamo11

Thank you for your comment.

My car have a EFI Technology ECU. Regarding your advice, it seems something related with this.

About my case, I can't feel any misfire but MIL Lamp is flashing and soon after the time change to lighting. During flashing, nothing strange behavior but once lighting like a 2 cylinder missing.

I'll check EFI technology ECU.
Do you have any suggestion?