Quote:
Originally posted by Veterans Day
caution: the fine film of liquid used on K&N's will eventually coat the mass air flow sensor on Fords and youll be going to the dealer cause you will get a check engine light and the EECIV computer or OBD-II will not respond correctly to the current air-fule ratio it is receiving. And the dealer will hit you for paid labor instead of warranty work. My tip for the day
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the oil on MAF is caused by over oiling your K&N. all you have to do to clean it is disassemble your intake and MAF sensor and spray 409 on a rag and gently wipe it