When wiring an L9 swap, always use a power distribution block for the constant 12V and Grounds. Do not rely solely on the ECU's internal grounding for the fuel pump or injectors; ensure the engine block has a solid ground strap to the chassis battery negative.
Understanding the wiring diagram and ECU pinout for the Daihatsu L9 is essential for: wiring diagram daihatsu l9 ecu pinout
For visual learners, technical tutorials on platforms like TikTok show live wiring for L9/Avy turbo swaps. The Complete Guide to the Daihatsu L9 ECU