METHOD FOR DIAGNOSING INJECTOR OF BI-FUEL CAR

摘要

PURPOSE: An injector diagnosis method of bi-fuel vehicle is provided to check the other injector which is normally operated in a case of the determination of injector malfunction and then change and set the other injector into a driving injector for using at the time of driving the other injector. CONSTITUTION: An injector diagnosis method of bi-fuel vehicle comprises the following steps of: diagnosing the normal operation of a first injector for using at the time of starting a vehicle in an electronic control unit prior to starting a bi-fuel vehicle; diagnosing the normal operation of a second injector spraying another fuel for a cylinder, on which the first injector is located, if the result for the first injector is determined as malfunction; and setting an injector for using at the time of starting a vehicle to the second injector if the result for the second injector is determined as normal. [Reference numerals] (100) Electronic control unit; (AA) Gasoline tank; (BB) Gasoline injector; (CC) Engine; (DD) Gas tank; (EE) Gas regulator; (FF) Gas injector