Feb 1, 2015 #1 J johnb Member Joined Feb 12, 2006 Messages 57 Hi Can anyone confirm that a vacuum control valve (EGR or Turbo) requires power to shut off vacuum, and passes vacuum with no power. Just want to make sure that mine are working as they should. Many thanks John 2003 S210 I6 320 CDI
Hi Can anyone confirm that a vacuum control valve (EGR or Turbo) requires power to shut off vacuum, and passes vacuum with no power. Just want to make sure that mine are working as they should. Many thanks John 2003 S210 I6 320 CDI
