Problems solved...
Erratic idle and stalling - fault of injectors. Course of action - change to 440 RC injectors. Car now runs like a dream.
VDC Lights etc, cause, I had to remove the steering shaft to make room to remove the aftermarket headers I had on previously. I must not have put it back exactly as I found it...probably off by a or 2 teeth.
Secondly, the speed sensor is going off on my right front wheel. Don't know how to reset that one...I guess I can do the hokey pokey with the ecu reset and see if that helps, but the steering will have to be redone, most probably by the dealer, because I have spent too much time under my car as it is.
But at least its driveable, and oh yeah.. I've got my BOOST BACK!!!