K6A ECUs are sensitive to electrical noise. If you repinned the crank sensor (A18), ensure the shielding drain wire is grounded at the ECU bracket only (not both ends).
However, as these vehicles age or get modified for export markets, one common nightmare emerges: . Between corroded connectors, swapped engines, and custom wiring harnesses, the need for a Suzuki K6A engine ECU pinout repack has never been higher. suzuki k6a engine ecu pinout repack
If a pin is corroded, cut it off. Crimp a new OEM-style Sumitomo or Yazaki terminal (0.64mm or 1.5mm series). Never reuse bent pins. K6A ECUs are sensitive to electrical noise