SUBREDDIT: r/AskReddit
TITLE: I know absolutely nothing about cars and I need advice about mine!
POST: I have a 2001 Mitsubishi Eclipse. The previous owner seems to have moved the air filter from its normal position to down near my front-driver's side tire. According to the mechanic this caused my check engine light to come on and report that my Mass Air Flow sensor was malfunctioning. 

However, this isn't what I was told the first time I took it into the shop. I was told that my Mass Air Flow sensor needed to be replaced. So I said OK and it was replaced. My car worked fine and then 2 months later it broke down while driving. The check engine light was on again. I took it back to the same place and they diagnosed it as being my air filter. I went to another shop to see if this was right and they told me it was my Mass Air Flow sensor (which I had already replaced).
TL;DR: 
My air filter is down near my tire and the mechanic's are telling me this is causing my check engine light to report that my Mass Air Flow sensor is malfunctioning.