Ok, a couple of weeks ago I had my safc2 installed with the buschur settings and everything was good and my knock sensor on the safc was at 0 all the time. Here it is two weeks later and about 15 degrees later and now after driving my car normal for about 20-25 mins, my knock sensor display says like 4 at idle and has spiked up to 18 at about 25% throttle. The only thing that I can think of would be the weather, but I wouldn't think that it would make that much of a difference. I haven't done anything to the car since. I talked to buschur and they said that it should be fine. I'm not questioning their intelligence or experience, but does anyone else agree or disagree. Any input would be appreciated.