Fiat Bravo JTD

Hello friends, I have a problem with a Fiat Bravo JTD. It starts when you want and before not starting, the witness who is an injury was on, I don't know if he will have something to do. He proved that Gasoil arrives at the incentors, and given him a bit of self -arrange and nothing, the injectors are current. What do you think can be ????
Thanks in advance

Good morning the first thing to do is a diagnosis and if nothing comes out. We had to control the return of the peaks. And if all this is fine we will have to see their pulse or wiring captors or face sensor.

Friend the car does not give any motor failure, I put a diagnostic machine, what has me worried is that the crankshaft collector since they made the distribution and according to the Fiat it is

advisable