[davepl]

I connected HPTuners and it showed, as I expected, both banks lean. It also showed a "Pending" MAF voltage low, but I checked and there's 12V present at the IGN pin of the MAF connector. I know the MAF is being read, as you can annoy it by sticking your hand in there, which will stall it.

It's possible the MAF Voltage Low is a hangover from when I had it disconnected, though I did reset DTCs.

I tried a 4-foot extension on the end of the intake pipe to make it a super-long straight shot and that made no difference, so I don't think its my intake tract.

Given that there's full voltage present, I doubt it's a fuse. Since it's reading -something-, just too little of it, I know it's able to read (not a cut wire, for example).

The MAF is cycling around 0.4-0.7 lbs/min (or whatever the units are), as the engine "hunts" and runs lean. Runs near perfect with the MAF disconnected.

Any ideas? Could the MAF be bad from new? That just seems unlikely.