I got a HKS SSQ BOV last month. Since then my car seems to backfire a lot. It also blows off all the time. Sometimes its kind of annoying. I know there is an adjustment on the BOV but what does that adjustment do? It would be nice if it could adjust the sensitivity a little. I know that several of you are going to say to read the book that came with the BOV. I tried and the entire book, all the information in the box, and almost every word on the box is in Japanese. I got it from eBay and it appears to be directly from Japan. Thanks in advance.