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UPREV and CEL! help

They are most likely only clearing the trouble code and not turning off the rear o2 sensors. Instead of having them perform that option via Uprev, you can get an

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Old 04-17-2011, 10:57 PM   #2 (permalink)
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They are most likely only clearing the trouble code and not turning off the rear o2 sensors. Instead of having them perform that option via Uprev, you can get an o2 defouler which basically moves the o2 sensor further from the exhaust stream to get rid of the CEL:

Vibrant Tunable Oxygen Sensor Defouler Kit - Universal Exhaust Items
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