Thread: Need help....sputtering bad

Originally Posted by Drw7475

I kinda dont know wat else to do....car ran great on the v-grooves I took out but the were worn to the point that the groove was almost gone......several people on this board say not to use platinums.....maybe switch to copper 606s?? Or should I swap out the icm

Your sputtering/misfire is not coming from the brand or type of spark plug.

You have another issue causing the sputtering/misfire.