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so I'm getting a P0420 catalyst system error but it's also saying the cat and O2S are fine and it's an evap issue that's keeping it from being fine. I noticed the
The OBD II Catalytic Converter Monitor
Code P0420 Catalyst Efficiency Below Threshold (Bank 1)
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Catalytic Converter Cleaning P0430 P0420 - ClubLexus - Lexus Forum Discussion
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Catalytic Converter and Computer Controlled Emissions - ppt download
