cx7 misfire

Ok guys. I'm new here. So if this is not where this belongs. Let me know. I'll put it where it should be. So I'm completely lost at this point. I have a 2007 Cx-7 (2.3l Turbo). I bought it from my boss a few mommon back. He owned it when there was 47,000ish miles it. Currently has 187,000 miles...