I have a 89 si civic and the other day i was driving and it lost power. When i was driving it just shut off and it had no power to any thing. On the cluster gauge there were some lights turned on. When the key is off the cigarettes lighter works But when key is on position it shuts off i dont know what is wrong. THere is some kinda buzzing noise when
the hazzard lights are turned to the on position but they dont come on. Battery is good.
It will crank when the ecu fuse it taken out but when put in it wouldn't.

 

Check to make sure your battery connects are on tight... that's the first thing. Second, check your ignitor coil inside the Distributor, and finally, check to make sure that all of your grounding wires are connected and clean. After that, you may have to go further into your wiring, but one of those things should be the culprit.

 

I am getting a cel 20 if that helps.

 

do u think it could be the main relay. I replaced it couple of months ago. My fuel pump wasnt priming.

 

any body

 

Well, a Code 20 is the electrical load detector.... I've heard from various people that you would need to replace then entire underhood fuse box, but that sounds slightly insane. Check all of your fuses and wire connections in there and near there. Also, what kind of engine do you have?

 

I have a d16a6 bottom and z6 head. I have also taken the whole dash assembly out yesterday took like 10 hours Every thing is out Steering column heater box ac blower.
I have replaced the Fuse box in side the car and the black one out under the hood. BUt
that is not it also have replace the alternator but not it. I dont know what else i could do
to figure this out.