Best thing is to have a read on the MLR, but..

AYC operates ok (check light comes on with ign and goes off when started) check ayc isn't noisey when cornering hard, check clutch is good, syncros, gearbox noise (bearing) warped brake discs, noisey tappets, front suspension top mounts knocking, front diff bolts, fuel cuts (from sticky/rusted actuator) on WOT