Throttle body and valve were clogged up so I cleaned them out but was still having problems.
I got a mate at nissan to put it on a diaignostic computer everything showed up fine, air fuel and everything, and no error codes but didnt feel right!! There is no exhast leaks, I checked it, so the damage cant be to bad!
I got it dynoed and it only dynoed at 108kw at all four and was running lean!!
I got the fuel pump flow tested and its screwed so im replacing it tomorrow with a walbro then getting another run done.
The pump was only running around 1.0 to 1.5 litres per min.
I will post after the pumps in, thats the major problem, but the injeactors i think will need a cleaning too!!
Thanks for the input everyone!!!!
I now have a couple of other things to check out if im still having problems tomorrow!!