Well eventually I had the throttle actuator replaced but that did not solve the problem so my mechanic removed it. He installed a new Engine wire harness becuase he felt that both parts died at the same time.
Problem still not solved. The computer is now showing that the idle control unit is faulty. One of the most expensive parts for this car and it has to be programmed at the dealer.
We will first install the actuator and see what happens. The dealers in my area would not install the harness under their good will policy.
Has anyone else been through this? Any thoughts?