the main 80 and 40 amp are good b/c i get voltage before AND after the fuse.

what happened was the old battery died, i put the new one in......everything worked fine until i fired it up. when i turned the key everything just died without the car even starting.

 

so does it crank
do the cluster lights turn on when you turn the key forward

usually with hondas the main wiring harness plugs into your fuse box in the car check to see that its still pluged in
usually has about 5 10 guage wires
power wires going in are white

 

Your Regulator in your Altnators is hooped to me i had the Same problem

Honda Civic 2000

 

rombar no it doesnt crank, no lights come on, nothing happens period.

 

yuli check all of the connections near the drivers feet and the ecu plug-ins I had the same problem with the green car.

 

Worst case.... you fried the computer Not hard to do, call around to a wrecker and swap it out. My guess is if you are getting voltage through the main fuses and you have nothing no lights no turn over you pouched it...

when you figure it out let us know

 

sounds like you got no power at the ignition
so check the white wire see if you have power
if ya don't its probably between the battery and your igntion wire
trace it back