Firstly, THANKS for the replies and ideas.
Coby7, it did act very much like a melted cat. I pulled the pre-cat O2 to see if it would rev up or run better, but, it was still the same... (actually, the way it was dumping fuel, it probably eventually would have ruined it!)
So.. I had some time on Thursday to go to the garage and mess with the car some more... It's actually pretty humorous what the problem(s) were with it, IMHO...
Turns out, the Ford stealership that she traded the car in at, had some "hammer head" trying to fix the car for re-sale...
When I got the thing back to my place, it was kinda half-arsed thrown back together, and to make a long story short... They had the speed sensor connector plugged into the Coolant Temp Sensor, and then the connector for the temp sensor was plugged (well, more like jammed) into the evap Purge Solenoid. Then, they had taped up the evap Purge connector and tucked it into the harness (must've figured it was an "extra" connector for something the car didn't have, since there was no place left for it to plug into)...
I came to realize the problem when I saw the 'buried way down low' VSS had nothing plugged into it.
I overlooked that, I suppose, mainly because they told me they "never touched the car", and I was the only person who worked on the car since it was new. Also, they had half of the harness routed around the wrong side of the radiator hose, so the connectors couldn't even reach to where they were supposed to go.
The PCM was doing all sorts of weird things. So, between that going on, me believing the car was 'un-molested' and not being under the hood of the thing for a while, it really started to send me on a wild goose chase...
So.. after fixing the harness issue, I had a normal coolant temp reading again, but the car continued to run like crap, and in reduced power mode, still.
I looked at data stream again with the car running, and saw the throttle was opened about 60%, no matter where the accelerator pedal was, and injector pulse width was like over 10 m/s at idle, and it pulling a ton of timing back (I imagine to keep itself from revving to the moon). The throttle body became my most likely suspect, and with "me, being me", I tore the side cover off of that puppy to do some interrogation...
Sure enough, the thing was opened about half way with the car running. I grabbed the 'sweeper' for the TPS and forced the throttle shut, and she started idling beautiful, like a brandy-new ecotec.
But, now I wondered why doesn't the PCM just close the darn thing on its own? I swept both the gas pedal TPS and the T.B. TPS (several times) and neither one had a glitch or any opens or shorts.
I took the Throttle Body off of the car, put it under a good light, and started poking around...and... Wow!! The stepper motor had a near invisible crack between one of the two tabs where it connects to the circuit board.
I applied a dab of solder into the crack, put it back together, and she runs like a champ!
That was a pretty crazy ordeal!
And again, THANK YOU guys for the replies, and ideas. VERY much appreciated!!!
PS- If anyone is curious about other details from this little adventure, I'd love to share