tell us more about the moment when it goes from normal to bad - you said gradually it loses power? or, there is an event, like you try to overtake traffic, like merging, or you turn on AC and then something happens...

you should be able to retrace your footsteps rather faster this time, as you already know where the MAF is, how DISA looks like and if the fuel pump is working or not... i sure hope it is one of the older things that you did last time, as opposed to something new acting up...

and hopefully we will have folks with more expreience with juicy parts chime in as well