Sydneykid,
To clean the internals of the AFM, do you actually mean taking the airbox out, physically removing the AFM from the car, taking off the mesh and spraying brake cleaner onto the internals, then re-assembling everything?
I've never dis-assembled the AFM before so I'm not sure how sensitive the AFM is, ie is it safe to be spraying things into the AFM and will it require re-calibration?