tbird53

i have an 01 roush gt that is running rich. car passed emissions last week and now you can smell unburned fuel out of the exhaust. I live in colorado and the car was bought and shipped from north carolina. The only mod on the car is a K&N cold air intake and it has 50K miles on it. Could this be a worn out or bad MAF sensor? No check engine light is coming on either.

thanks for any info.