IMPORTANT - The information on this page is ONLY applicable to the 3B engine. It is NOT transferable to the ABY engine. 

The image below depicts the pin locations as if viewing the connector on the ECU.

The image below depicts the 3B ECU pinout when viewing the cable assembly.

The following table defines the functionality of each of the 55 pins on the 3B Motronic ECU. 

Si...: Bastian-s Family Secret -v0.02.1- By Boxgurih Ba

Bastian's Family Secret is an adult-themed visual novel developed by BOXgurih. While you are looking for a guide for version v0.02.1, the game has since been updated significantly, with version v0.02.9 released as of February 2026. Game Overview

Download the Demo: [Link to BOXgurih’s Itch.io / Patreon Page] Bastian-s Family Secret -v0.02.1- By BOXgurih ba si...

Unraveling the Mystery

Plot Overview: Provide a brief overview of the story without giving away too many details. For example, you could say it revolves around Bastian and his journey to uncover secrets about his family. Bastian's Family Secret is an adult-themed visual novel

Bastian's Family Secret is a visual novel developed by BOXgurih. The game follows Bastian, a man who has devoted three years of his life to his wife's family despite being treated poorly by them. This version introduces the secret object (the chest)

Introduction of the Core Cast: Players meet the primary female leads and set the foundation for the protagonist's daily life.

Notes on v0.02.1 (draft stage)

• This version introduces the secret object (the chest) but does not yet reveal the full truth.
• The next iteration (v0.03) will include the first decoded journal entry.
• Tone: Suspenseful, domestic mystery with emotional weight.