Question no starting t30 with brand new engine, injectors, fuel pump, turbo & clutch

[Guest satinsilver]

Hi Folks,
Serious predicament here, any info is much appreciated...
We run the crank so replaced the engine. We have an 05, (4 pin injectors), bought another t30 engine and fuel pump which only run for 3 hours (2 pin injectors). We replaced the injectors to suit our loom with ones that done 44k miles. Whilst the engine was out we also replaced clutch, fly wheel, turbo spindle and numerous other parts for the mot and 'leave as a new jeep' as we hoped.
When it was all put together again, the codes read p1272, fuel pump and p0089. We changed the suction control valve. The car was idling 100% but lack of power on acceleration, almost like no turbo was kicking on or 'get me home'. After 30 miles the car stopped and is yet to start again. 
The pressure release valve has been changed, filter changed, fuel is getting to the pump but not reaching the injectors. We were advised on throttle position sensor and rail pressure sensor. The pump etc was cleaned using delphi autocom. The pump does not say aw403 as our original but it does say aw4 as per original on the same stamp only 3rd line down. 
Is there something in these pumps that can block, by the way the engine was 'new' but it had say without any use out of the car for 2 years.
Some people say the pump can be replaced whilst inside the vehicle but most say it has to be removed.
What is we just changed the gears behind backing plate? Is the key prone to come out. Does anyone know if there is a fuse related to this and is there anything else electrical sensor wise or otherwise that could cause this problem.
Any advise or help, no matter how small would be much appreciated. Again, what about the year difference in injector pins and what really is the difference in these injectors other than the number of pins? Thanks very much, have a great day, ps love the Nissan, just don't want to be tormented into hating it