2001 XK8 wont pass CA smog

https://www.jaguarforums.com/forum/xk8-xkr-x100-17/obdii-code-p0447-assistance-please-resolved-235038/

This is the thread on code issues

Thanks Stephen. Its really not applying to my issues

My 99 XK8 had the P1000 code that I was unable to clear. Took it to a local smog shop and they said it would not pass with the code. Took car to a mechanic that had done head gasket work on car and said that code is not a problem. Pointed me to a shop a few doors down and they passed it.
Glenn

Hi, Glenn, and thank you. My understanding is that P1000 is saying that something in the system is not complete. For example, if EVAP isnt, that is ok and it will pass. If CAT isnt, it will not pass. And, these codes clear from driving so they do change and clear the more and varied you drive. Im learning by fire here. It’s very aggravating and frustrating being that both of my identical jags have codes that arent clearing. grrrrrr…
Bill