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p0137 is the rear O2 sensor the oil most likely is a leaky valve cover gasket, the O2 sensor connector might have oil all over it, one place you can check for the oil from the gasket is down from the pcv it will pool there in a pocket of the head. then get back with us.



Awesome logical deducement!!!


Just spray the O2 sensor connector with electrical degreaser and DO NOT buy another sensor.

Then take care of the Gasket issue (do not forget to change the PCV) at that point.


Do the spark plugs and wires while you are at it!!!! <img src="/forums/images/graemlins/kewl.gif" alt="" />