05 durango 4.7 loosing power

I recently put in a new transmission. Then I
changed out my #2 for miss fire now it's reading o2
sensor codes and only half the engine is running
right and the side of the #1 isn't. While driving
down the road it looses power so I hit that gas and
nothing sometimes and others it'll hesitate and
then pick up and take off. It had a rough idle but
when I opened the purge valve on the snap on
comp the rough idle went away. Also it dies
sometimes when at a stop light or when slowing
down for a stop sign. I've put 1000 $ in this thing
this past week can someone pls help. It's more
prone to do this after driving it and starts to warm
up