[Tech II]

Agree with Blue that the cat is functioning based on temp.....and if there was a cat problem it would set an efficiency code.....

Rough idle on a cold start that clears up as the engine gets warm?

Last time the vehicle had a complete tuneup, plugs and wires, PCV, air filter?

Misfire under a load?

Have you been adding coolant? if not, check coolant on a COLD engine.....check reservoir level compared to the "cold mark"....remove radiator cap and make sure the coolant is to the top of the radiator, before starting the car....

Why did you replace all those parts? If because of a code, that is shot gunning.....Just because a code is set, you don't replace the part the code is named after.....that code means there is something wrong in the Whole circuit the part is in, or, the code is set because something affects the running of that part...... Let's say for example, an O2 sensor code is set....do you replace the O2 sensor? No, first you check to see if the O2 sensor is working.....a code can be set, not because the O2 sensor is bad, but because it is reading something that is skewed by something else in the vehicle, like a vacuum leak.....

As Blue said, we will need a list of the Powertrain codes, to give us a starting point.........

As for nobody answering, there are a lot of people on vacation, this time of year.....hang in there....