How do you change ignition coil on a Infiniti G20?

To change the ignition coil on an Infiniti G20, first, ensure the engine is off and cool. Disconnect the negative battery terminal, then remove the engine cover if necessary. Locate the ignition coils, detach the electrical connectors, and unscrew the bolts securing the coils in place. Replace the old coil with a new one, reattach the connectors, and reassemble any removed components before reconnecting the battery.