citroen berlingo starting issue

[grishart]

Hi all

I have a starting issue with my citroen berlingo 2003 hdi 2.0
It came up with an error with an injector which i replaced, but still wont start. It cranks but there is no fuel getting to the rail. I have a siemens pump (as in the picture) I am trying to replace and test the solenoid on the pump.

I have a couple of questions.

1. how do i remove the Solenoid and test it?
2. how do I find out what the make and number of the Solenoid is to replace it?

Thanks for an advice you can give.