[icingdeath88]

Check the engine grounds. The fuel injectors, knock sensor, and bypass air valve all ground through the engine (not the MAF though). Not sure how likely it is to be the cause of this but it's free/easy to check, so might as well just to rule it out.

What I would do next is test the MAF, by unplugging it prior to starting the car and check if the car runs better or differently. A MAF on the way out can cause some weird behavior.

Then clear the codes by unplugging the battery for a while (like 10 mins should do it) and then see what codes come back. Also try it with the MAF unplugged and see how it does (unplugging the battery also causes the ECU to forget some of the things it's learned). When you unplug the MAF obviously it will throw a code for it, so if anytime you do that you should clear the codes so that when you check you will know if the MAF code is because you unplugged it or because it's actually giving a bad reading.