In this video I talk about my experience in repairing the P0401 code by replacing the Vacuum Switching Valve (VSV) on my 1997 Land Cruiser. I use a VSV that is made for a Chrysler and install it a different location from the original VSV.
Dorman 911-850 Vacuum Switching Valve (VSV) (Amazon affiliate)
US: https://amzlink.to/az0L7AEle4r5g
UK: https://amzn.to/3dtrAzh
DE: https://amzlink.to/az0lJLcrsmngi
AU: https://amzn.to/2VgHEOL
ODB-II Readers: https://amzlink.to/az02bfMi9Bpa3 (Amazon Affiliate)
Tekton 14932 Ratchet: https://amzlink.to/az0H6y9jRXY42 (Amazon Affiliate)
Land Cruiser Playlist: https://www.youtube.com/playlist?list=PLErU2HjQZ_ZNTNDledQZp3VLGsMo1W1fQ