Hello. I recently replaced my motor from my 2000 Accord. The original motor was an F23a1. I purchased a JDM F23a & noticed my harness would not connect to the rear of my block. This is the last connector & was wondering, "was it ever hooked up in the first place?" I'm not to sure because my original motor looks the exact same & I feel like I overlooked it when I was removing the harness connectors to get the original motor out.





Is this some sort of plug &/or does it need to be connected? My connector from the harness does NOT look anything that will fit/work with it. All help is appreciated. Thank you.


original motor (pulled ) f23a1

new motor installed - f23a

new motor installed - f23a closeup

 

It's the knock sensor. They're almost always broken on the JDM take out engines.

 

knock sensor but pull it to see if it's plugged? We broke mine but when we took it out, it was plugged.

 

Thank you guys for your fast reply/info/time