Land Rover Repair: 2004 Land Rover Discovery SE 7, discoweb org, land rover discovery

Question
what is needed to fix Secondary Air Injection System Switching Valve A Circuit Open

Answer
Hi Pete,

there is an excellent thread discussion on this very subject within the discoweb.org site. Do a search for 'secondary air', 'SAI Valve circuit malfunction' or P0412.  In this case, the '04 owner found he had vacuum line trouble after his initial repair.

Best of luck,
JohnMc