P0420 code twice, need help!!

2001 TOYOTA CAMRY
170,600 MILES • 4 CYL • AUTOMATIC
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JPAUCTIONS
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I have a 2001 toyota camry with 170,600 miles has P0420 code that came on twice. What could be the problem and what needs to be replaced?
Aug 3, 2011 at 6:17 PM
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RASMATAZ
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• P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
Aug 3, 2011 at 6:20 PM
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ASEMASTER6371
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cat coverter failure. you should replace it with either an oem converter or a bosal. the other aftermarkets do not have enough precious metals to keep the light out.

Roy
Aug 3, 2011 at 6:51 PM
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