| 摘要 |
PURPOSE: A harmful electronic wave reducing apparatus for a gasoline engine control unit and an engine is provided to interrupt harmful electronic wave noise generated in the control unit and the engine, thereby preventing the damage of vehicles and casualties to men due to erroneous operation of the engine control unit and sudden starting and sudden acceleration by the harmful electronic wave noise. CONSTITUTION: A harmful electronic wave reducing apparatus for a gasoline engine control unit and an engine includes two idle PRM signal input terminals(a,b) and a battery power input terminal(d) of the engine control unit(ECU) respectively connected to one end parts of three coils wound on a ferrite core(FC1), wherein the other end parts of three coils of the ferrite core are respectively connected to two idle RPM control cords(A,B) in engine wire harnesses and a battery power input cord(D) through normal choke coils(L1-L3); a main power cord(C), an oxygen sensor ground cord(E), an injector ground cord(F), a control ground cord(H), an outstage ground cord(J), an ignition coil + and ground cords(K,L) are directly connected to respective connection terminals(c,e,f,h,j,k,l) installed at the ECU; and electrolysis and Mylar condensers(C1,C2)(C3)(C4,C5)(C6,C7)(C8,C9)(C10,C11) are installed between two idle RPM and the battery power input cord, the main power cord and the control ground cord, the ignition coil + cord and ground cords, the main power cord and the battery power input terminal, the battery power input terminal and the outstage ground cord, and the ignition coil + cord and the ground.
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