Air flow meter?
If its the MAP sensor youre talking about, there's a resistor in the box that detects the temperature of the air flow, but I dont think it needs any cleaning...
http://img2.imagebanana.com/img/dqokm4gk/evo_x_brochure_main.jpg
A brochure for the Japan-spec Mitsubishi Evolution X has leaked online revealing the final styling of the new car’s exterior and cabin as well as its...