starting problems in a Hyundai Terracan Diesel

It is Camoon Rail so, well, the first thing about the diesel to Checar is one that the tempisor sends the spark plugs, second that the incondent spark plugs receive it and third that the spark plugs work, if all this is ok, then I recommend you to make a scanner since it can be from the signal magnets to the electronic and toso accelerator is expensive so the scanner short search.