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Check engine light /no muffler

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Old 12-12-2012, 01:07 PM
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Default Check engine light /no muffler
So i ripped my muffler off in the woods i now and just at the flange of the cat this am my check engine light came on driving to work it was cold out what are the chances of it just being an o2 sensor all helps appreciated
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Old 12-12-2012, 01:20 PM
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Punctuation, dude! Did you rip an o2 sensor off? Also, get a code reader on it.
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Old 12-12-2012, 01:28 PM
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No sensors are all there the light just came one could it be because of back pressure
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Old 12-12-2012, 01:57 PM
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No it wont come on cause back pressure.. wat year is your jeep
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Old 12-12-2012, 02:26 PM
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2001 cherokee sport
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Old 12-12-2012, 02:51 PM
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O2 sensor heater can be bad it will throw a code
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