check engine light

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Old 07-29-10, 06:55 AM
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check engine light

I have a Rodeo 2001 my check engine light is on and took it to AutoZone they were able to pull three codes{420,430,401} can any one tell me what the codes mean
 
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Old 07-29-10, 07:02 AM
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The basic answer...according to my code reader lookup program....is auxiliary emission controls. Now what that means specifically...I can't tell you.
 
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Old 07-29-10, 12:33 PM
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I got these from batauto.com:

P0420
TWC (three way catalyst) System Low Efficiency Bank 1

P0430
TWC System Low Efficiency Bank 2

P0401
EGR Flow Insufficient
 
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