P0420 Error Code 01 Jetta 4Cylinder gas

Getting a Below threshold error code bank1. Car has 91k on it. Curious what this means. Is bank 1 the O2 sensor before or after Cat? Can someone expand on this some for me? How long are Cats supposed to last with correct conditions and are there any extended warranties on exhaust systems in the US/VW cars?

Thanks

Joe

Reply to
corporate.joe
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Problem Fixed! Check Engine light went off after driving the car for a few miles with a new air filter installed.

joe-

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Reply to
Joe

It will come back in time! The fault is for the cat converter and may be covered by warranty yet?

Reply to
Lost In Space/Woodchuck

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