boosted92hatch

hey whats up. i was on here the other day and someone referred me to ff squad for fixing the code 91 i was getting when i swapped a 96 ex motor into my hatch. i changed out the tank but can anyone tell me where i can find instructions on how to wire this into my ecu so that i dont get code 91. i just need instructions. ive done tons of swaps but never came across having to do this before. please help me out. thanks