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    Re: Bmw 728i E38 2001 fix Archived Message

    Posted by andyhyoung on December 14, 2007, 6:23 pm, in reply to "Re: Bmw 728i E38 2001"

    I decided to fit just the 2 pre cat sensors as an experiment and all works ok .the emissions are now well within spec.I would be interested to know why they were never fitted from new at factory;perhaps something to do with poor fuel quality in certain counties.

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