Newbie questions are always welcome----its how some of us learn---don't be bashful about asking, lots of helpful people here!

COP is Coil-On-Plug which is the newest way of delivering high voltage to the spark plug. In the Dark Ages of distributors, coils or HEI distributor caps and notorious-for-failing plug wires. With the ECM spark energy is available more directly and in theory a better more reliable ignition system for internal combustion gasoline motors.