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Old 05-23-2009, 06:50 PM   #2 (permalink)
Ford Man
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Join Date: Jul 2008
Location: Russellville, KY
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The 02 sensors should still be good. Usually if an 02 sensor goes bad it will have a drastic effect on FE, usually causing a 25-35% drop. If the 02 sensor is bad you also should have a CEL. The plugs should still be in good condition, but you might want to pull them out take a look at them, clean them and regap them.

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