if codes 171 & 174 are detected will check engine light remain on after repairs

What is your question?

codes detected. Informed that mass air flow is blocked. Lines checked and said to be clear but air cabin filter and engine filter were old and extremely dirty. They were both replaced. Code was reset but light came back on. Leaks now noted from engine plate between block and oil pan....would this cause check engine light to remain on What seems to make the problem better or worse? not sure How long have you had this problem? several weeks