What are the symptoms of a faulty motorcycle ECU?

1 Answers
MacIsaac
07/29/25 11:34pm
Symptoms of a faulty ECU: The vehicle cannot start; The fuel pump works normally but does not inject fuel; The vehicle starts easily when cold but has difficulty starting when hot; The internal electronic components of the ECU become unstable when heated, causing idle speed to fluctuate; Sudden stalling while driving or idling; The vehicle stalls when shifting gears; The key does not work; No fuel injection, the fuel pump does not work, and no ignition occurs; The diagnostic tool cannot access the system and fails to connect for vehicle detection. Below is an extended introduction: The ECU is sensitive to high temperature and high pressure: When the external voltage exceeds the rated working voltage of the ECU system or the external temperature exceeds the allowable value of the rated temperature, the ECU can be damaged.
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