Have 1991 Mazda rx7 trailing coil not firing?

If the trailing coil on a 1991 Mazda RX-7 is not firing, it could be due to several issues, such as a faulty coil, bad wiring, or a malfunctioning ignition control module. First, check for any visible damage to the coil and its connections. Additionally, testing the coil's resistance with a multimeter can help determine if it's functioning properly. Lastly, ensure that the ignition system is receiving the correct signals from the engine control unit (ECU).