EGR Valve sensor on 2006 Honda Civic

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?

by in Massena, NY on July 14, 2010
0 answers
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