Hello to all,i have a sierra 2wd cosworth with closed loop program from MSD but it burns the lambda sensors,already fitted before 3 days a new one and now is damaged,i have followed msd instructions, the black wire to ecu Signal,and the 2 whites,the one in earth and the other in fuel pump relay (+),but i don't know if the whites are the same or not...so any help would be really appreciate.thanks in advance

Thanasis