Closed loop occurs after a certain coolant temp is met along with a couple other parameters that I can't think of. Then the o2's start operating. If your blm's are 128/128, you are good. Spark sounds right. I would look at tps voltage, make sure its steadily increases from about a half a volt closed to over 4.5 volts at wot. It might also display percentage, so 0 to 100. Also look at the IAC counts, should be around 30-40 at hot idle. Is it only hesitating/bogging when you are accelerating?
No problem on the cable
