@vIjAy_kHaSa You have just confused me because as per me the car should not start if the eprom and the glow plug control module on the injectors is hard coded for cylinder no. because the hex code if not matched will throw a error straight away. I did check with one of the Guy and he confirmed me the same . Now really I need to check with the hard code data logger person and need to check thoroughly. Though he does'nt reveal the details to any one but I think he will share it with me lets see. Second point of cold start totally agree that it will emit smoke no denial on fact but white in color still confusing because last when I was driving a vehicle of different make in colder climate and at altitude 3800 mts was emitting small black smoke with unburnt fuel due to improper combustion on steep climb. Since you said you have experienced so it cannot be challenged but need to be studied. White smoke if because of diesel is caused when we spray the cold diesel on a hot surface not in pressurized manner but in droplets. I encounter these colored smoke problem everyday because I use many high pressure Diesel burner more or less with same concept with different nozzle setup with less amount of electronics all make danfoss and siemens. As far as injector servicing is concerned I am again confused with the word servicing. By servicing do you mean changing of the front nozzle part or cleaning up the clogged nozzle please specify. Also please mention what do you mean by codes.Are you refering to the injector indentification details or the handshake program on the injectors.As per my knowledge the injector program code cannot be altered unless you have the machine to write the chip on the injector. I have read your many post and seen that you are one of the few intelligent man on this forum who follow the problems and their solution judiciously may be its your interest or profession. I even read your ignition Lock barrel repair post and video and was surprised to see the amount of repair people are capable of. OTT The barrel with brasslock plate assembly is bought for less than 50 Inr from the manufacturer and without plate and spring will cost you mere 4 inr and see at what price they sell. I request you to take my post in a positive spirit and do not think that I want to prove any point.I am just a keen learner.