E46Fanatics - View Single Post - How to clean the mass air flow sensor??
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Old 04-17-2010, 02:37 PM   #29
Registered User
Join Date: Mar 2010
Location: New Jersey
Posts: 8
My Ride: 2004 325i
brake cleaner is very harsh on plastic and rubber. i would avoid it. get an empty spray bottle (or empty one) and use rubbing alcohol with the spray nozzle set to stream. only of course if you cant get the CRC stuff. Im going to get some now and see if it fixes my MPG issue. im also gonna start a new post bc i have no SES light and i lost 80+ miles to a tank. (no its not leaking)
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