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Old 11-18-2012, 09:06 PM   #5
kk3an's Avatar
Joined: Jul 2009
Location: Somerset, PA
Oddometer: 84
I had the same symptoms at about 38,000 miles, and replacing both oxygen sensors made the mileage pop back up.

Looking back, I'm not sure if just a simple cleaning of the sensor area itself will cure this or not, or if a total replacement is needed.

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