Have a 2000 Seville sts 4.6 keep getting misfire cyl 7 code any sugesstions thanks
My suggestion would be to figure out why it is misfiring. Plugs wires or coils? Does it do it all the time? Is the motor making any unusual noise?
Ditto but when did you have the injectors cleaned?
Swap the spark plug with another cylinder to see if the misfire moves.