secondary intake valve bank one

Asked by Jun 15, 2013 at 01:37 PM about the 2000 BMW 3 Series 328i

Question type: Maintenance & Repair

engine light on replaced all components to codes p1421 and p1423 light reset came back on 2 days later

1 Answer

4,145

What in the secondary air system did you replace. The valve, the pump, the vacuum hose to the valve?

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