check engine light on

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01-10-2006, 07:38 PM

topsecrettl

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check engine light on

what up guy's my engine light came on i got code 0420 now i will like to know is it the cat or the o2 sensor please let me know a.s.a.p thank's

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01-14-2006, 04:57 AM

chelo3218

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change out your o2 sensors first. the light should go off..............if it comes back,,,,,,change your cat. convert.......................you should be good to go if that is the problem.

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01-14-2006, 08:45 AM

phipark

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Quote:

Originally Posted by chelo3218

change out your o2 sensors first. the light should go off..............if it comes back,,,,,,change your cat. convert.......................you should be good to go if that is the problem.

fix cheapest first.