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SES Light - Bad Cat?

Probably an oxygen sensor (behind the cat). Because you're running HFC's. It's working.... it's just that it throws a code because its range has been exceeded. There are a few

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Old 11-23-2011, 02:14 PM   #2 (permalink)
6MT
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Probably an oxygen sensor (behind the cat). Because you're running HFC's.

It's working.... it's just that it throws a code because its range has been exceeded. There are a few fixes. The best would be to have an UpRev tune and eliminate those 2 rear sensor inputs. The problem will be permanantly solved. You can also extend and protect the sensors with bungs and steel wool (this is not a permanant fix).

It won't be the cat itself that's bad.
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Last edited by 6MT; 11-23-2011 at 02:20 PM.
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