Nissan Micra 1.5D GX No For the Motor

Hello again to all.
In March I told you the problem I had, but simply stopped doing so (with heat), but now that the cold has returned, because the problem has been very emphasized again.
The problem was that the car has a hard time starting with cold, once you have started it, there are no longer problems throughout the day.
The fattest problem (it is the bride's car), is that once she starts it is 5 minutes by warming it, but it has already spent a day to get into the circumvalation and squat the car.
The other problem is that I do not stop the engine, you have to peel it.
Any type of electrical problem is discarded.
The problem is in Gasoil Electrovalve, or pump.
The pump located it, but the electrovalve I don't know what it is to do something. I've been taking pictures of the engine today.
Have if you can locate me, or if you can help me with the problem, I accept all kinds of help.
Thank you.

Look at something simple first, put the feed of the pump, that is to say the positive cable of this, straight to sheet, or some fisible that feeds with contact and that does not cut with the start, handle it and everything, when you take the contact, devote the pump to stop immediately, it may be that the sheet has some kind of problems.

Hi there.
I know what happens to the car, and I would like to ask for advice because I have a great dilemma.
The theme that does not start and that is covered, is because it takes air through the diesel filter, the mechanic solves it for € 40. This is why there is no problem.
The issue that I do not stop, this is the problem. The unemployment electrovalve is annoyed, but to change it, the pump must be removed, and in turn the distribution strap. That is, the mechanic recommends me to change in addition to the electrovalve, belt D distribution, pulleys, bearings and water pump, that is to say about € 600.
Does something happen to you? The problem that to access the electrovalvula, must be removed the anti -bar attached to the pump, and the screws must be drilled, and the drill does not enter.
How could I not spend so much money?
The coach is from the bride, and we wanted to last a couple more years.
Greetings and thanks.

Put a short fuel valve that you can act from the cabin to stop the vehicle, I do not know how much it costs in Spain that but here in Chile it is not very expensive, Buano here is very poorly paid.

But that does not eliminate the problem, because the engine will stop when the diesel of the electrovalve to the pump ends, but when starting there will be air and will not start.