My Ibiza's engine is suddenly

Good, I introduce myself from Las Palmas and I have an Ibiza of 1999 1.4 the Open Roof.
The issue is that the engine suddenly stops, observing that the slowdown of the vehicle sometimes becomes unstable.
I have also observed that in the chivatillo of the coolant temperature, it has a losses, the one that is just under the poster of the engine.
Well I hope I explained, since I am only a mechanical fond of mechanical.
I would appreciate any information about someone, something similar happened to you.

Look at the filters and more the fuel fill pump
recommendation if the engine does not suffer from overheating,
pulling
greeting

There are two things-valve IAC or the TPS sensor

Hello, very good I would look at the air control valve release if it is dirty. You can also take an eye on the spark plugs that are often the cause of these symptoms in the vehicle. I hope it helps you.

Well sorry I responded as late, but good as the saying says, more bale late than ever.
After good times with the mechanical colleague, this in the end manages to find the answer and was as simple as the box under the steering wheel that supports the fuses, had a loose plug.
I hope it helps possible users with similar problems.
First of all, tell you that the gasoline pump was changed, contact plasticate of the key cylinder and I think nothing more !!!
Thank you all for the help shown. Phenomenal forum.