system 2d mini cooper s 2005

[sainz911]

thanks, I have do this and I have eliminate the air in the system, and I have riscontrate a red wire from the level tank disconnected.
Now I have reconnected this and I haven' led on but the system dont'go.
To test the sistem I procede in this mode: I disconnect the two wire (blue and black) from the pressure sensor and I turn on the engine but the system don't inject, (inject to 1/2 sec) and stop.
Is this a right mode to test?
I have do any test: the red and green wire from the injector ar right connected,
I have cut the green wire and connect this at ground and the system go
I have connect the red wire of HSV at +12 and the brown wire at ground and the HSV go, but every so often wrong, does not go. If I slightly unscrew and re screw the HSV, go.
I have control the voltage to the HSV red 12,5 brown 13,75 with engine on. why? Si correct?
I do an error to test the system? or I have a problem in my system?
thanks thanks Richard and scuse me to do at you this problem.