Just installd newaltenator in 89 honda crx now no power no lights

check fuses could be bad relay

have u checked the ground wire to the battery to make sure that u are gaining a charge . if u are gaining a charge thru the battery then please check the battery cables

did you check ignition switch

the wiring harness rubs in half. trace the wires from the alternator back. Under the intake manifold about middle ways you should find the broken wire.

Your alternator may be on it's last leg. Start the car and while the car is running, remove the negative cable from the battery. If the car dies, the alternator is no longer working. If you have a volt meter, put the meter on the battery positive and negative. You should read 13.8 - 14.2. If it doesn't show this, and reads under that, your alternator is not charging enough to keep your accessories going.

go get the battery and the alternater tested. its free at like auto zone and it covers your bases before spending lots of $.

replace the ignition control module,I recommend a new one,if you order a rebuilt dist.it comes with a used one that only passed cold temp bench test they usually have problems once the car warms up. so get a new one!good luch let me know if you need more info have a good day DB

ignition module /coil igniter

Just Take out all the fuses and replace them with the right size amperage on that fuse....

make one