HELP!!!! Im having big problems with EGR delete

So.. I bought the plate... installed it. And left the plug laying around. I dont know what to do with it and now the car is having a big powerloss and running rich til about 4000rpm where it boost the power back... I started playing with the plug and conected a wire to all three slots and the car turned off... tried it again same thing... after that the car ran fine for a day... but it started with the same exact problem the next day... what should i do with the plug? should that fix my problem? the delete tutorial i found the pictures were already deleted and it didnt say anything about the plug...

PLEASE HELP!!! Im going crazy over this... I cant even go out... just to work since i live close... but i dont go nowhere else cause im afraid the car will stop or the engine will break... THANKYOU