That is the rubber boot that is on the end of the spark plug wire that goes onto the spark plug.
Remove rubber boot. Pull off plug. Twist light bulb 1/4 turn and bulb should come out.
Give the spark plug boot a twist to free it from the spark plug then pull it off of the spark plug by the boot.
.o44 and some are .043.
This motor has no distributor. It has a coil pack for each spark plug. There is no condenser.
Twist boot then pull, this will break the seal from the plug.
On a 2.0L it is top leftside of the valve cover. It is a yellow handle that sometimes is broken off and it's just a little plug looking thing on the valve cover.
There is a plug under the car that must be removed. It is located on the upper side of the transmission. Fill until lube comes out the hole.
.60
Firing order 1-3-4-2
.060 Inch
0.060 inches
.060 of an inch