Purpose, Function
The cylinder head gasket is installed between the cylinder head and cylinder block to prevent leakage of air-fuel mixture, combustion gas, engine oil, and engine coolant.
Construction
A four-layer type metal gasket has been adopted for the cylinder head gasket.

Cylinder Head Gasket Replacement
Cylinder HeadOperational Range
The system operates only when the driver is in the vehicle or within operational
range while the key is being carried.
NOTE
When the battery power is low, or in places where there are high-intensity
radio waves or noise, the operational range may become narrower or the system may
not operate ...
Main Relay Control [Skyactiv G 2.0]
Outline
Supplies power to each part by switching the main relay on/off at the optimal
timing according to the vehicle conditions.
Block Diagram
Operation
When the ignition is switched ON, the main relay turns on and electrical
power is supplied to each sensor and devic ...
Starter Cut Off Control [Skyactiv G 2.0]
Outline
The PCM controls energization to the starter relay according to an immobilizer
system request to improve security.
While not in P or N position, the starter relay energization by the ignition
key is inhibited. (ATX)
While not in neutral, the starter relay energiz ...