i used to have this problem with my frst intermittently.it would smoke really bad after about a minute of starting it up and go when the cars warmed up.use an engine flush and change the oil and filter using correct filter efl500 from ford and make sure the oil grade u use is correct as the oil return pipe from the turbo to sump curves over the exhaust and thick oil can sometimes not drain properly and build up in the pipe and flood the turbo when u switch the engine off.especially in the winter as its cold and thick