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Secondary Air Pump system will not complete drive cycle
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11-22-2021, 04:36 PM
andrewwynn
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Join Date: Jun 2015
Location: Racine, WI
Posts: 10,818
If they are old enough I would replace them. OEM only (don't make the mistake many of us have of "renting" some crappy O₂ sensors).
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2011 E70 • N55 (me)
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