Hey guys, only one of my spark plugs works right now. The one closest to the firewall works, all the other three don’t spark. I swapped out the coils and they’re all fine. I checked the grounds on the back of the motor, took out the screw, sanded the area and put them back on, still nothing.
Not sure as to why the first three aren’t firing. Everything is plugged in correctly, looks all good. Can I somehow ground them individually and see if that works?