I've lost all electric power in my 89 Civic. Can anybody help?

 

Check the voltage at the battery. I've had a couple of batteries fail that way, they are fine one minute but then something opens up inside and it's stone dead. If the battery itself is up over 12 volts like it should be, then check for bad connections at the battery posts and the main ground wire from battery minus to the frame and engine. Check the main fuses in the fuse box on the shock tower next to the battery.