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CEL came out when i installed my exhaust

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Old 08-08-2009, 01:15 PM
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Thumbs up CEL came out when i installed my exhaust
i jus installed my exhaust today and my check engine light came out, when i ran a diagnostic test a p0240 code came out is this because my stock catalytic was removed????
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Old 08-08-2009, 02:38 PM
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normal, you gotta get a CEL fix plug, search it up.
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Old 08-08-2009, 03:25 PM
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sure you don't mean p0420?
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