Its real easy. You just take out the 3 screws and pull the top of the sensor off. Theres to little metal pins that have a wire attached to the top of them. They are fragile. Get some CRC MAF Sensor Cleaner and spray them down till they are shiny. Let em air dry and put it back in.

Be real careful when you are pulling the maf sensor off, pull it straight out so you don't hit the pins on anything.