Update,
Have done a 100+ ks and the jeep is running fine with no CELs..
So, either the sensor cleaning did the job or the 10mm socket has positioned itself in such a way to short out any CEL readings....
![Smile](http://www.ausjeepoffroad.com/forum/images/smiles/icon_smile.gif)
Either way its a win / win..
Now, where do you get a Provent, or similar, at a reasonable price..?