MAF Issue

[FinalDrive]

I just finished swapping a blacktop SR20DET into my '93 and have a problem with the MAF sensor...the car won't run with it plugged in. Unplugged, it idles fine, but won't rev past 2500 RPMs. The MAF and ECU were tried on another SR swapped car and both appear to be fine. I have checked continuity on the MAF wires...the White wire and Black wire have continuity from the MAF plug to the ECU plug. The Black/White stripe wire reads the same voltage as the battery when the ignition is on.

I'm stumped! Here is a video of the problem. Normally the engine idles rough before stalling out, but it just shut off in this video

http://www.youtube.com/watch?v=kgsJjnNLVK4

[FinalDrive]

Here is another video of how it acts when started with the MAF plugged in

http://www.youtube.com/watch?v=b5mQGygt5ZQ

[FinalDrive]

with the MAF unplugged it threw Code 12 - MAF (of course)
with the MAF plugged it in threw Code 55 - No Malfunction

this is frustrating...