Purpose, Function
The spark plug generates spark, ignition of the air-fuel mixture occurs, and combustion of the air-fuel mixture is triggered.
Construction
The spark plug is installed to the cylinder head.

Iridium on the center electrode and platinum on the ground electrode are used (iridium spark plug).
Because iridium has excellent durability, extreme thinning on the center electrode is achieved.
The area contacting flame is decreased by extremely thinning the center and setting electrodes, and extinction action is reduced. Therefore, excellent ignition performance is achieved.

Spark Plug Removal/Installation [Skyactiv G 2.0]
Data NetworkFilament Inspection
1. Switch the ignition ON (engine off).
2. Turn the rear window defroster switch on.
CAUTION:
Directly touching the rear window defroster filament with the lead of the
tester could damage it. Wrap aluminum foil around the end of the lead and inspect
the filament by touching it ...
Shift Lock System Inspection
Shift-Lock System Inspection
1. Switch the ignition ON (engine off).
2. Shift the selector lever to the P position.
3. Verify that the selector lever cannot be shifted from P to R position when
the brake pedal is released.
If it can be verified, go to the next step.
If not as ...
Plug Hole Plate Removal/Installation
CAUTION:
If the rubber on only one side of the plug hole plate front is lifted up,
it could damage the adapter at the location shown in the figure. When removing
the plug hole plate, lift up the rubbers at the same time.
Removal
1. Pull up the front part of the plug hole p ...