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Reply To: Hyosung GT650R EFI (Daewoo ECU) – Won’t hold idle / Stalling issue

May 25, 2026 at 9:22 AM #22645

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Topics: 1
Replies: 5

Country: Poland
Bike Model: Hyosung GT650R

I just checked the continuity of all the wires going from the ISCV connector directly to the ECU with a multimeter. Every single wire beeped, so the wiring harness is perfectly intact and there are no broken wires.

This is my ECU. Do you think it’s broken? Is there any way to check it?