Well, got the Z back just now, and it feels smoother idling, alot tighter sounding?
I was told ABBEY MOTORSPORT made some custom spacers for the sensors, to stop them reading too much 02! The car was tested, and ALL SRT tests were completed, and according to Nissan, no problems detected..Phew!
Chief mechanic said the Kinetix cats were working fine, plennum had been re-sealed, no air leaks etc!
The clicky rear axle problem has been rectified with the replacement repair kit!
On this occasion, I am happy Nissan have done so well, lets see what what happens..
Jerry