Just wondering if you jumped down this rabbit hole yet and tried something else? Or if it went away?
Quote:
Originally Posted by RYDEM3
I’m currently on the same boat with 27B0 secondary air bank 1 “increased emmisions” was hoping changing out spark plugs and pre cat 02 sensors would do the trick as others have been successful with, pumps are working. Just looking to rule out other things before tackling down replacing the hose/valves altogether
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