Okay so i have a 1988 Prelude SI B20A5 DOHC Fuel Injected, I had codes 8 and 16 even though i replaced those parts. so, I called my local Honda dealer and they said if ive replaced those it sounds like the ecu or a wiring problem, so i disconnected the battery, grabbed my parts car ECU and and put it in, hooked up my battery, And now i have no power what so ever. I have no idea what happened please help me!!

 

Try cleaning your battery posts and cables. If that doesn't do it, start checking fuses.

 

I cleaned the posts, and check my fuses but my fuse board in the engine bay is totaly dead