Liqui moly 4066 air flow sensor cleaner 200ml liqui moly 4066 p align left this air flow sensor cleaner 200ml from liqui moly is a special active solvent for fast and gentle cleaning of sensitive components within and air flow sensor in gasoline and diesel engines removes contaminants at the hot wire or the hot plate of the air flow sensor p liqui moly 4066 air flow sensor cleaner 200ml