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Old 12-17-2016, 09:02 PM
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Join Date: Mar 2012
Location: Florida
Posts: 37
harleyclassic2 is on a distinguished road
What is this ? Pl see Pic attached

On my 2002 X 5, 4.6is ... Please see attached picture

While replacing vacuum tubes for a P0491 error -secondary air injection system insufficient air flow bank 1,

Arrow 1 (& finger) on picture

what is that gizmo called and its purpose ? The nozzle where the vacuum tube connects at its rear broke off. So need to buy used or new.

Arrow # 2

What do these things do ? & what is that knob at the front of that little box ? seems it can be rotated for something ?

Elementary questions for most of you....
Thank you
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