2. The Megasquirt2 (ECU) pin out definitions:
And then I documented how I actually made the wiring connections between and ECU wiring harness and EFI engine wiring harness.
Here is the original wiring connections from June 2023 using the wire connector blocks:
And here is the new wiring connections from May 2024 using moisture resistant wire connectors:
In my opinion, clear documentation is a must for success.
Good luck with your DIY project!