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high voltage
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  1. NG900 & OG9-3 Workshop
    So I have been getting a CEL. O2 sensor High Voltage. Some of the symptoms i have noticed is a drastic plumet in my fuel economy. A dismal 15mpg. Will replacing the O2 sensor solve my problems or is there another underlying cause. Another thing. Is replacing the O2 sensor a simple thing to...
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