In https://www.rotax-owner.com/en/912is-technical-questions/6775-buds-dongle-ecu-download-error-code-messages-reference?start=45#p22924 I Know that the spark plugs and injectors alternate on every cycle so that the ECU can tell if one of them fails but how does it tell this? If one injector for a cylinder totally fails then how does the ECU know that cylinder is misfiring? And how many times must it misfire before the ECU turns on a Lane light and reverts to single Lane operation?

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