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2006 Honda Civic Question: EGR Valve sensor



no-rye, Massena, NY, July 14, 2010, 20:33

I washed the engine of my 2006 civic and shortly after my engine light came on with code P0404. Apparently this is affected my EGR. What I am unsure of is, do I change the valve or a sensor? Is the sensor a O2 sensor or a EGR sensor?

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