I have a 98 honda prelude base with JDM h22a. The other day, I was driving and the rpm and speed odm flickered up and down, lost power to the radio. It only happened for a split second.The engine still on when this is happening. Once the power comes on the abs light stays on and it reset my check light. Today, when I pull in to the parking lot at work, I shut the car off. Now I don't have any power to unlock the doors no dash light when i turn the key no nothing. Car just wont start. I recently replaced the main relay and ignition switch because the car was cutting off while I was driving. Do anybody know what the hell is going on? I would like to think its the alternator, or battery, but I just got a new battery a couple of months ago. Even if dead, I should receive something indicating that there still something left in the tank. Please help me out.

 

I didn't. I meant to rule out that battery.

 

well,charge the battery and see if itll start up.

if the car runs after that,does your battery light come on while running?
check for power from the alternator with a dmm.

 

After waiting an hour or two, I went back out there and the car started up with no problem. I got a feeling it will happen again. It has been getting progressively worst over the past week. Any ideas?

 

so you charged the battery and THEN it started back up?or do you mean that it just magically started after a couple hours?

if it just magically started,id say you have a bad ground.

if your car started after a battery charge,then you have a parasitic draw or your alternator is done for..
have your alternator tested first.

search parasitic draw

 

I would check the grounds and connections. Keep in mind that they could look fine but there could be a small film of corrosion around the battery posts(normally positive side) that could be preventing a connection at times