Just a thought....are all you guys experiencing this with the air conditioning "on"....just wondering if the load on the engine of cycling the compressor could be affecting your idle....

I also know that on some cars the air conditioner compressor has an idle control module....don't know if the VX has one...but just a thought....

Honestly don't run my air conditioning much at all but the few times that I did I thought I noticed my idle speed vary along with compressor "load" which I took as normal.

Hope this gives you something to go on!