Make sure that you did get the 4 wire O2 sensors since there are different ones.
I would do the following provided that you do have the correct sensors installed.
Clear codes (without starting vehicle)
Remove and reinsert O2 plugs
Turn on power of car but not ignition. Let it go through the adaptation process (takes about 30 seconds). You will know when it's done when some of your instrument cluster lights dissapear. Start ignition.
If the idle is rough, shut down and restart (without having to go through steps above again). Repeat until idle is normal. Drive and have fun!
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