supra engine trouble

[supraluvr]

thanks for the tips guys the car is still revving out and the white smoke still bellows from the exaust the car sounds really rough on tickover if its an ecu prob or a turbo prob any idea,s on what its likely to cost as i said i bought the car from a dealer in yorkshire the dealer name is wrc sales bradford im waiting to see if he will honour his promise to have it rightafied as i travelled to fishguard dock to colect the car i paid 12400 pounds for it i live in ireland do u guys know if i would have any way to make sure he honours his garantee or which organisation to contact in the uk if he doesnt, ive been a fan of the toyota supra for many years but im not a machanic i just love the shape so when i came into a few bob i thought id realise my dream of owning one have any of u here ever heard of this company and what there like hope it all works out or at least if not that i can get my money back thanks guys for ur tips and coments