high emissions

[kylepiggy]

my car is currently running at 7% and the maximum is 3.5% i have tried running it on my emissions machine and turning the screw on the mass air flo meter but no change at all any ideas how to drop it down to 2% also starting to smoke on and when you drive it yo can smell that it's running very rich what would the smoke on idle be either turbo or valve seals. does not smoke when driving just on idle