2000 galant poped p0171 code
Recently my 2000 mitsubisi galant 2.4l jad the service engine soon light come on. After i got it checked out they
gave me the trouble code p0171 Rich fuel mixture. They said it could be a vacume leak, bad maf, misfire, bad o2
sensors. My mechanic said there was no leak, misfire and that the maf was fine, the only thing left were the o2
sensors so i replaced them both but the light wont go away. What could it be?