engine wiring loom problem

hi i need help with my car, its a silver 1.7 zetec engine which i just replace myself i accidentally drop the engine with the engine wiring loom still connected, the wires came out of the connector from the ecu side of connector all these wires are black and i don't know which wire goes to which hole there are numbers inside the connector from 1 to 12 with two holes not in use, need help please, just got this car three days ago for a project any help appreciated thanks