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2011 srx
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Discussion Starter #1
I recently had the check engine light come on at 75K miles. The OBDII code is P0430 or Catalyst system efficiency below threshold Bank 2. With only 75K I would doubt that the catalytic converter would be the issue. I suspect it is a bad O2 sensor on the #2 bank. Has anyone else had a similar issue? For the more experienced folks; would you replace the O2 sensors first? Thanks!
 
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