E46Fanatics - View Single Post - HPF running lean but only under very slight acceleration...
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Old 03-15-2013, 12:16 PM   #4
Forcefed M3
Registered User
Join Date: Jan 2006
Location: Seattle, WA
Posts: 3,418
My Ride: HPF Stage 2.75
Originally Posted by andynb View Post
Fixed. Turned out to be a bad wideband sensor

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