I have Ford Fiesta 1.4 tdci 2012 model which was not in use for 5-6 months after that the white smoke from exhaust on starting up which dissipates after 50 - 60 seconds. It's not dependant on the weather however I've noticed it's when the car has been stood after a couple of hours, obviously more noticeable on start up first thing. It doesn't happen when driving either. I've checked the coolant & oil levels and there's no leak or its not dropping rapidly. The smoke is white / greyish not thick and like I said quickly dissipates, there is a smell which I think smells like deisel..

Mechanic suggesting for reprogramming of injectors.is it required.

If I will buy injector through ebay or any other source will it work smoothly.

Is there any problem of sensors.

Can I run the car for sometime in this condition.

Please suggest