i checked cables from computer to spark plug coil(colour: Bu/Gr, Bk/Bu, Bk/Y) which is no any damage...
and i changed 2 new plugs (NGK B8ES)
KILL switch is already set to RUN....

one day i was driving, suddenly the engine stop.....
then i can'r start the engine any more..
finality, i discove that the plugs are no spark