Cars been pretty good. I, ve had uneven brake wear on front disc brakes, also have a shutter, sometimes a little hard to start on first start of the day, also starting to get check engine light, codes are P0401 & P0171. ANyone have any suggestions.

check engine light is on, diagnosed to an emissions leak, trying to fix it for 2 months, checked the hoses, did a smoke check, Light keeps coming back after about a week of driving. if someone has the same problem and found a fix, let me know.