have DC headers but somethings not right

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yellowspecv03
Posts: 24
Joined: Sun Apr 27, 2008 9:42 pm
Car: 2003 sentra ser spec v

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i have DC headers on my 2003 sentra spec v with no cat and the catback system but my engine light goes on and off why is that i know it should be on all the time cuz i have no cat but it turns off for a while then it turns on for a couple of days what could be the problem and i feel power diffrence

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nametakennow
Posts: 10024
Joined: Sat Aug 24, 2002 4:14 pm
Car: '06 MINI Cooper S

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What did you do with your second O2 sensor after you installed the header?
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