So I just picked up this 93 civic. It wasnt running so I got a good deal. I swapped out the old engine and put in a jdm d15b. I replaced the engine wire harness and ecu, etc. It starts fine and all good. BUT the car powers on immediately once I connect the battery. I didnt even have to turn the ignition on or anything. What should I look for in solving this issue? The main relay? Ignition? And what should I look for? Thanks for any feedback. PS..I'm guessing the previous owner had the same issue thats why he sold it like it was.

 

anyone? anything?

 

Thats weird, but Id start with the igntion were the key goes. It could be broken inisde of it in the 'on' position, or its just shorting out.