air filter cleaning or replacement?
i have a p0171 error code reading. while cleaning the air flow sensor located in the air filter housing, i notice inside the top half of the housing i notice what looks like another filter. this one is held in my plastic studs that have been heated to retain this "filter", is there some recommended way to clean this "filter". mine is pretty gray looking. i've replaced the bottom removable filter a few times within the three years i've owned the car. i would assume cleaning or replacing this filter would do wonders in getting more air into the engine. the engine runs like a top, and idles at 900rpm smoothly. i get some where around 30 to 31 miles to the gallon. just need to get the stupid "check engine" light to turn off for inspection.