Do you hear any rattling underneath the car? If you do, the material inside your catalytic converter is probably falling apart, causing blockage in the air flow through the exhaust. Which causes back pressure and all the codes you listed. I just had this same problem a few weeks ago.
Check the cat. and see if you can hear anything loose in it. If you do, either break apart and clean out the material, or go the legal way and replace it.
fyi - if you just clean it out, you will still get the first code you mentioned because the O2 sensor will detect too much fuel because it is not being burnt by the now non-existing material inside. It will be fine though.
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2009 Jetta SE - Mine
2001 Cabrio GLX - Bro's
1988 Scirocco 16v - Dad's
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