Thanks for the help, Mark and xalty.

I do have power at F14. I will check to see if there is continuous power at the purge valve. If not, where can I find that relay R9?

Then I will see if the other wire in the purge valve connector goes to earth. If continuous to earth, I think that indicates a failure at the ECM cuz should only go to earth when the ECM commands. If no earth indicated, doesn't tell me anything,

I do want to look at the NAS "Evap Canister Close Valve". Can you tell me where on the vehicle it is, what it looks like? Is that the same as item 1 shown in post #16 above?

 

This thread might help you with descriptio of issues and post #9 has picture.
https://www.jaguarforums.com/forum/x...nister-261507/

Sounds like it is incorporated in the charcoal filter assembly and not a separate part and the filter assembly is no longer available new.

It is located above the differential, so likely difficult to get to (haven't been into that area myself yet.