markkuczwal

Hmm,
Are you sure you have enough fuel coming and it is not aerated? When I had injector lines off on mine it took me almost 45 mins of cranking and priming the system before it would finally start, very nerve wrecking experience to be sure.
I'd connect clear plastic hose between fuel filter and the pump and return line on the pump and the return pipe to see for myself. If there is no air present in the fuel then the news is/can be indeed the bad one for your vallet.
Are you sure there are no DTCs or engine MIL is not flashing? If the pump ECU doesn't respond to main ECU signal requests the MIL will flash, you can check that is the case by disconnecting the plug on the pump itself the MIL should flash (turn the ignition off first when disconnecting the plug)
* If there is no fuel pumping out of injection line at all that means that either:
* pump ECU is not powering up (either B+ or B- wiring is not OK),
* main ECU is not powering up (Ign+, B+ or B-)
* main engine ECU is not telling the pump ECU to start injecting fuel (NATS or data link between the ECUs is not OK)
* pump ECU and or Injection pump is broken
There is a way as a last resort to force pump ECU to operate in the so called hot mode by powering up/grounding certain pin/s but it is not for weak hearted and I'm not sure if it applies to 4 cylinder versions of VP44/Zexel units. ===>
Disclaimer: you must ensure that the pin outs are correct for your model! Above instructions are for 6 cylinder versions of Bosch VP44
There is also a very dodgy way to see if the engine will start at all (so you can discount other things) that you take  intercooler hose of between intake manifold of and spray healthy dose of Aero™ Start in there and crank to see what happens.
I personally would have to be very desperate to try that way as the possible damage caused makes me cringe!
Regards