CATALYST PROBLEM FAULT LIGHT

HELLO CATALYST PROBLEM at regular intervals me VEHICLE BECAUSE OF TROUBLE LIGHT ON was CATALYST FOR CHANGE SPARK in A with thinkers USTA CHANGING we TRIED THE VEHICLE my OVER THE ORIGINAL NON-hoofed SPARK PLUGS THERE WAS THE ORIGINAL PLUGS PLUG AFTER BOTH THE VOICE OF MOTOR HAS CHANGED BOTH FAIL LONG HAVE BEEN does VERDE I WANT TO SHARE WITH YOU's experience THIS MATTER.

Has there been a decrease in fuel after the spark plug change ???

I did not fully calculate, I will write information

thanks for sharing