Knock Sensor in Nistune.

Has anybody else had problems with the knock sensor being to sensitive. My knock sensor goes crazy and nistune beeps at me when I slowly rev the engine between 2000 and 3000 RPM and when I take off slow. I just rebuilt my motor and got it running with a z32 maf and 830cc Siemen Dekas, my AFR seem to be alright in that area.

Just wondering if others have removed the sensor from having similar problems with it just picking up engine noise from having bigger cams or something like that?