A nuance ignition problems

I have the next problem with a nuance, when you turn on the car does not turn on since it does not inject gasoline, the new pump was placed and nothing, when measuring signal in the injectors positive signal but I have no negative pulsation; Test with the distributor and it is not, probate with the computer and neither does the censors change and nothing, someone could tell me what it can be; I am more than sure to be a cable but I do not have the electricity manual, if someone has it and I can facilitate it, I would appreciate it. Send to the next mail . : UNSURE:

Hello, look what you have to do first is to go for steps to find the fast damage, according to what you relate the problem is injection, the first thing is to determine if the failure is due to lack of fuel supply to the rail or lack of electrical feeding in the injectors, electronically, for this remove the fuel input line at the rail and you look at the press And you open the swuitc keep in mind that depending on the injection system that has the pump sends pressure with the open swuitch or star Computer, if all this is well you must disassemble and review the injectors and the pressure regulator, to personal opinion if you have already changed the fuel pump can be the electrical feeding of this test the 12V in the feed cables of this, you must take into account of giving Star to test.
Greetings and I hope you can repair it, you tell us.

Thanks for the subject, the problem was lack of land to the computer