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Home >> Porsche >> 2000 >> Boxster Base, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> DME 7.2 - 911 CARRERA & BOXSTER >> DTC P1411: Secondary Air Injection System, Bank 2 - Below Limit >> Diagnosis Procedure >> Check Electric Change-Over Valve

Check Electric Change-Over Valve

  1. Remove two-pole connector of electric change-over valve.
  2. Connect voltmeter to pin 1 (positive) and pin 2 (negative).
  3. Trigger AIR pump with Porsche System Tester 2.

    Display: battery voltage

  4. Remove vacuum hoses of electric change-over valve with the engine running. Check whether vacuum is present.
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