Selling my Ford Focus 1.6tdci 

Brought of a family friend, has been off the road for about 2years, I’m sure won’t take a lot to pass 

Recently just had a brand new battery from Halfords, recently just been serviced, 

Unfortunately car is being sold as spare or repair due to a lot of white smoke, I believe one of the injectors are causing issues, (smells of unburnt fuel)

Iv tried what I can including replacing all old fuel, but injector cleaner though it, replaced fuel filters, but still smoke, 

It is not the head gasket! Had the car running for a few hours, there was no sign of oil in water or overheating,

If you have any questions please give me a shout cheers Callum