I have an Acura (Honda) Legend 1993. The car was kept for 4 months and when it is turned on again only the injectors and coils on the left side of the engine receive a signal. The injectors and coils on the right side do not react. I inverted the coils and injectors and continued the same. We installed an ECU from another Legend and it remained the same. Where can the problem be? What else should I check?