Purpose, Function
The cylinder block forms the cylinder and crankcase.
Construction
The cylinder block consists of the upper cylinder block and lower cylinder block.
The cylinder block is an open deck type with excellent cooling performance.
The lightweight cylinder block is made of aluminum alloy with excellent heat dispersion.
With the adoption of the lower cylinder block, the coupling rigidity of the transaxle and support rigidity of the crankshaft have been improved reducing engine vibration.
The oil separator function is set to the upper cylinder block, enhancing ventilation of the blow-by gas.

Engine Assembly
Engine Front CoverAir Fuel Ratio (A/F) Sensor Heater Control [Skyactiv G 2.0]
Outline
Based on the control of the A/F sensor heater, a stabilized oxygen concentration
is detected even at low exhaust temperatures, and feedback control of fuel injection
even at cold engine start is made possible for improved cold temperature exhaust
emission performance.
...
Mass Air Flow (MAF) Sensor/Intake Air Temperature (Iat) Sensor No.1 Removal/Installation
NOTE:
Because the IAT sensor No.1 is integrated in the MAF sensor, replacing the
IAT sensor No.1 includes replacement of the MAF sensor/IAT sensor No.1.
1. Disconnect the negative battery cable..
2. Disconnect the MAF sensor/IAT sensor No.1 connector.
3. Remove the MAF sensor/IA ...
Fuel Pump Control Module Inspection
1. Perform the KOEO self-test..
2. Verify that a fuel pump control module related DTC is detected..
If DTCs are detected, repair the malfunctioning part according to the applicable
DTC troubleshooting..
If a DTC is not detected, go to the next step.
3. Inspect the followin ...