1.5D Micra does not go out !!!!

Hello. How are you?
I wanted to tell you the problem I have, and throw me a hand, please!
My partner has a 1.5D micra. The little coach is going well, but it has been removes the contact key and the engine is still on.
This morning I have been glance, and I observe that.
Indeed, the engine does not turn off, you take the contact key and the engine is still running, but the entire electrical equipment if it goes out, with which I rule out that it is a problem of the key contact.
Although he has told me that once the radio is on.
I have also observed that it once has difficulty starting, such as it does not get diesel and if you accelerate because it starts.
Will it be of the electrovalve that gives way of diesel?
Will there be any more eliments out there that I can be punching? (T6ipo Relay ...)
I have problems because it has been impossible for me to locate the workshop manual of this engine. I have several but of the gasoline models. The one who has a 1998 K11.
Can you advise me something?
Do you know where they could locate the workshop manual, or if someone has it, could you send it to me?
THANK YOU

Give me the frame number (the ciasis number)

The frame number is: Sjnecak11u3038642

Hello, how do I think your problem can be in the gas-iol cutting electrovavula of the injection pump that is always open so that the engine does not stop. cable at the top of the electrovalve.

Another thing. Do you know if the piece is expensive?
The car is going well, but he is 12 years old, and he didn't want to put a lot of money in him.
Can you realize more like the piece? I do not locate it.
Thank you.