My check light came on a couple of days after having my car inspected. It passed on 2002 Lexus GS300

Emissions test. I took it to Auto Zone for a printed diagnostics test. The code P0430 came up. Is that the o2 sensor?

by in Houston, TX on September 15, 2013
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1 answer
ANSWER by , September 19, 2013
could be o3 sensor or cat converter.mech needs to inspect o2 readings to determine which parts are bad.