guys as you know i just got my car running. i have been driving it around today to see how it runs. i had about a half a tank of old gas in it. i topped it of with premium and added so octane boost/fuel stabalizer. to the question, about half throttle or more it cuts out bad. i pulled the code and its 52 knock sensor. will this make my car run this poorly. i have read a couple other threads about this. any ideas?no air leaks or loose vaccum hoses. i put a new fuel pump and filter on before it broke down. but it still could be filter huh?