when you say sir faulty injector...it means it needs to be calibrated. Not necessarily. Loosen one injector high pressure pipe at a time. If white smoke ceases when you loosen a specific pipe, you may have already identified the smoking cylinder. This could be an indication of a bad injector, or low compression pressure on this cylinder. Check valve clearance on this cylinder, or interchange two injectors to see if white smoke transfers to another cylinder.

what will happen if i don't calibrate my injection pump? will this have a problem with the engine in the long run? If your injection pump is ok, I don't see why this will affect your engine. You don't have to calibrate a good pump. Sayang lang pera mo.