sri engine swap?

ive put a 2.0 sri engine from a 97 car,in to a 1.8lx 2000 car.im haveing a nightmare adapting the origonal sri loom to the origonal loom.ive got everything but correct fueling.if i cross the pump it wont start at all,i put the sri pump on and all that does is run continuously.theres a small black tank under the osf wheel arch,what is this,whats the correct set up for fuel?