update on this hicas problem,
bought a r33 hicas motor and swapped it over, noise totally stopped for a good hour of driving around town, then slowley came back getting louder and louder to the same as before :-(
In the mean time I have been searching the web and found a couple of pages say that if there is any problem ie motor or sensor stops working the hicas is unable of moving make it from 4 wheel steer to 2 wheel steer,
So I disconnected the motor and took for another drive, No noise!!
Has any one done the same for a long period of time and found any change?