I've had the engine and turbos rebuilt 5000kms ago, but the problem I'm having at the moment is that when I start up the car when warm, a clicking noise (electrical sound) from the drivers side fender (Right Hand Drive) where the AIV is located whilst the rpm revs to 2000 rpm at start up and then goes all the way down to 500, then it hunts/surges from 600-1200 rpm coinciding with the clicking noise, I am also very sure that it isn't coming from the engine itself. Driving it causes it to almost stall out and/or the rpm flactuates. Any knowledge of these symptoms would be much appreciated!