Did a tune up, now won't "fire up"( including coil)-cz" please help"!

If you didn't disconnect the negative battery cable first, you may have blown one or more fuses. Here's how to quickly and easily test all underdash and underhood fuses with a test light or multimeter:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post252145