Last summer I replace my knock sensor, because I got the code for my knock sensor (Bank 2). This summer I got the code P0327 which says knock sensor 1 circuit low Input (Bank 1). Does this mean that there is a second sensor I have to replace? And if there is, where is it located? Or is it the knock sensor harness that is malfunctioning? I would really appreciate so help, thank you.

 

pretty sure the harness that need new one