Ive been trying to convert my S2 to efi for a while now but i just cant get thye car to run right it's got a Mk4 cab efi loom, ofab chipped ecu,3 bar map sensor,escort cossie fuel pump,biege injectors, but the car runs at idle fine but just wont rev up at all it just cuts out? so i swapped two wires to the map sensor now the car revs with a bit of a miss but wont tick over can anybody help??