Dont use any type of fluid on maf sensor,it's perticular mass sensor cleaner spray is hard to find in automotive markets in pakistan,i live in karachi i had never find maf sensor cleaner here in markets,but you can buy it online from daraz,i only find it on daraz pakistani online marketplace,i have purchased twice liquimoly maf sensor cleaner,and i am satisfied by its results,smooth drive MashaAllah.you can purchase from daraz also,clean maf sensor on every mobil change,and after cleaning maf sensor put maf sensor back after half an hour.that it should completely dry.and also put always good quality airfilter,and clean airfilter with pressure air gun once in a week.in that way maf sensor will be neat clean for long time.