I did the search and there was alot of stuff out that I already tryed. this is the problem I went from 15lbs of boost to dropping to 10 lbs down to 5 lbs ,I have an sp turbo kit with 66 turbonetics set up the turbo has only 2500 miles on it ,so i checked to see if my waste gate was stuck open it was working fine ,also put in a new boost controller greddy type s now im only making 3lbs, so i installed my leak tester plug the turbo i notice that cold side has a little bit of leak but will that cause 3lbs boost only ?