So as some what explained in another thread, I have a 10 and 16 fault code on an M119.

I pretty much think the MAF sensor has gone whack. So I noticed that a lot of places offer rebuilt MAF sensors...what’s up with that? Can I rebuild it myself? What exactly is it that they are "fixing”?

How easy are they to change? Any instructions or tips for me?

any idea if code 16 is directly related to 10?