The TPS requires no calibration .
Fluxuating idle is almost always a vacuum leak.
The O2's would have to be terrible to cause it.
If you installed new gaskets on the LIM, UIM, TB, IAC, and EGR valve - pull the top two lines and plug them. If that's not it, give the PCV valve and hose to the intake a good inspection (or plug the intake port). The formed elbow often gets soft and leaks or collapses.
If you still have a problem, spray the UIM end plugs with carb cleaner for a test.
