Cutting Electrovalvula Failure

Hello, I have a Ford Transit that when I take the contact the engine continues to turn. I think it is from the pump cutting electrovalve but I am not sure, how could I check it? And if it is from the electrovalvula, how could I fix it/replace it? Thanks for the help

Check if current comes to the Electrovalvula terminals.
If you are constantly even without contact, it can be a problem with a relay that was stuck.
And if it were without contact, it does not arrive signal, the electrovalve may be stuck.
I do not know how the electric part is, of that van ...
but they are things that can be drawn for conclusion and reviewing well you can reach the fault.

Hopefully something as a guide serves you.
Luck.