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Mass Air Sensor Cleaning

Fuel System

Model: 997, Year:1999, Mileage:62000, Type of use:Street use only
I bought some CSC to clean the MAS. Installed a K&N about 150miles ago and the engine light just came on. As i read...Perhaps related, perhaps not.The cleaner says to disconnect the harness and after removing the MAS it says to spray 10-15 sprays onto Hot Wires or Hot plate. Is this referring to the sensors inside the unit?It further says to clean all wires and connertors. Should i be concerned about damaging any part of the unit or am I in essence giving the intire unit a bath.Finall, should I also use this product on the harness connector?

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