Question about 2000 Mitsubishi Eclipse

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Code Po420 on 2000 eclipse

This code wont go away i have change the cat 02 and it is still on i dont know what else it could be just need an idea changed spark plugs as well.

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Hello question to repair person did you try and disconnect the battery wait a couple of minutes and re-connect it do reboot the computer in the car?? if not I would start with that,John

Posted on Dec 31, 2008

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Posted on Jan 02, 2017

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