well i need help doing this, ok so theres one wire on the knock sensor that goes to the ECU right? ok so once i run the wire from the knock sensor through the firewall how am i supposed to put the wire in the ECU? any soldering? or do i jus stick it in? can i use any wire?

 

your going to have to get some ecu spade connectors from a junk yard or something.

check this out: https://honda-tech.com/zerothread/1171263