Hi everyone, i've had that code (low input knock sensor) ever since i bought my Z and after driving other Zs I knew there was something wrong. My car felt a lot slower, laggy, and lost a lot of power throughout all rpms especially below 3k. I searched for hours here and found out that i may have to change either my knock sensor/wire harness. I take a look and the knock sensor looked really bad (corroded). However the wire harness looked pretty good so i just replace the Knock sensor. After that no code and my car felt great, chirping 4th gear Well couple days later it feels slow again so i checked for codes. Well it's back and i don't really know what to do Do u guys think ima have to replace the wire harness even tho i didn't see anything wrong with it? Is there anything else triggering the code? I would really appreciate any help from u guys.

Thanks and sorry for the long post

 

Anyone?