I have a ECU with the numbers IAW 048/02 on the top half of the label and WD48.08/L3E.31 It has a white Co screw,but it doesn`t have the 2 lugs used to secure the ECU to the carrier in the car.I have a Sapphire Cosworth with a L6 ecu.Does any body know what this is for.The size is identical (less the 2 securing lugs at the front)