i see, i thought so honestly just not fully functioning at the mo. But u could retain all that could'nt u? it's only 4 wires to hook the frst ecu's & sensors up with power & to the fuel pump relay if i remember rightly & everything stays as is. & the frst loom is the same as the 3i efi loom cause that's what i did with my 3i/ turbo, plugged the frst ecu & map straight in & away she went