This document provides a curated list of external resources for those seeking to deepen their understanding of Electronic Fuel Injection (EFI) theory, ECU architecture, and engine management systems.

Industry Resources#

• Hondata0: Extensive technical documentation regarding Honda engine management, focusing on the modification and tuning of factory ECUs.
• DIY-EFI0: A comprehensive archive of EFI theory and development. While originally focused on domestic platforms, it contains a wealth of foundational knowledge applicable to all engine management systems.
• EFI Tuning0: Technical resources dedicated to the tuning of GM and Bosch-based ECU architectures.
• ECI-Multi0: A technical resource focused on Mitsubishi/DSM engine management systems, serving as a useful reference for comparative EFI architecture.
• SDS EFI0: A commercial vendor of standalone engine management systems featuring a high-quality technical library covering fundamental EFI operation and tuning principles.
• HowStuffWorks0: An excellent resource for understanding the scientific theory and mechanical operation of automotive systems, featuring detailed diagrams and explanations.

DIY Engine Management Systems#

• MegaSquirt0: A well-documented, open-source fuel injection computer project featuring complete schematics and community-driven development.
• MegaJolt0: A specialized system designed for the control of Ford EDIS ignition modules.
• MSExtra0: Advanced documentation for DIY spark control systems, including integration with external ignition drivers like the MSD 6AL.

Note

While these resources provide valuable theoretical and practical information, always verify specific pinouts and wiring diagrams against the factory service manual for your specific chassis and engine combination.