hi all new to forum,hopfully buying rs turbo cab tomorrow and just need a few answers please,first he said it has a 5th injector which isnt wired up,but he said it helps it start so not to sure if its a csv its in the intake manifold,it seem to run fine with out it wired up do i need it,it was a bit of a pig to start it has been stood for a couple of months is that bad,any help would be great cheers