The computer diagnostic shows codes P0420 and P0430, What is wrong with my car ????

130,000 MILES
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CARLOSTORO
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  • 1 POST
the check engine light is on, the computerdiagnostic shows codes P0420 and P0430. What shoud I do to repair this problem ???
Aug 30, 2012 at 8:02 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
Those are converter efficiency codes and 95% of the time be bad Catalytic Converter/s
Aug 30, 2012 at 8:20 AM
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