If it's the original pump, it's 13 years old, and is due to fail. As far as the plugs, white plugs with oily threads usually are the result of a bad valve cover gasket, and oil leaking into the spark plug hole, getting the threads wet when you pull them. If it's so lean the plugs are white, any oil residue in the combustion chambers should be burned up.
Take care,
-Chris
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