ENGINE [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)]

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Special Features

•  For SKYACTIV-G 2.0 and SKYACTIV-G 2.5 (without cylinder deactivation), the following is performed to lower fuel consumption.

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―  Improvement of mechanical resistance loss

•  Narrowed down crankshaft journal

•  Optimized piston skirt shape

•  Lowered piston ring tension

•  Roller follower adopted

•  Reduction of valve spring load

•  Stabilization of timing chain behavior

•  Optimized engine coolant passage

•  Optimized water pump impeller shape

•  Lowered drive belt tension

•  Optimized oil passage

•  Optimized oil pump shape

•  Oil pump discharging pressure control has been adopted.

―  Improvement of pumping loss

•  Variable valve timing mechanism has been adopted on both sides of intake and exhaust.

―  Coolant control valve adopted

―  Optimized engine coolant passage

―  MAF sensor adopted

―  MAP sensor adopted

―  IAT sensor No.1 and No.2 adopted

Intake side: Electric variable valve timing control

―  Intake CMP sensor adopted

―  Electric variable valve timing motor/driver adopted

―  Electric variable valve timing relay adopted

Exhaust side: Hydraulic variable valve timing control

―  Exhaust CMP sensor adopted

―  Engine oil solenoid valve adopted

―  DC-DC converter adopted

―  Fuel pump control module adopted

―  Current sensor adopted

Specification

Item					Specification
					SKYACTIV-G 2.0	SKYACTIV-G 2.5
MECHANICAL
Type					Gasoline, 4-cycle
Cylinder arrangement and number					In-line, 4-cylinder
Combustion chamber					Pentroof
Valve system					DOHC, timing chain driven, 16 valves
Displacement		(ml {cc})			1,998 {1,998}	2,488 {2,488}
Bore × stroke		(mm {in})			83.5 × 91.2 {3.29 ×3.59}	89.0 × 100 {3.50 × 3.94}
Compression ratio [European (U.K.) specs.]					13.0:1/14.0:1	13.0:1
Valve timing		IN	Open	BTDC (°)	-32―42
			Closed	ABDC (°)	110―36 (without coolant control valve) 100―26 (with coolant control valve)
		EX	Open	BBDC (°)	54―9 (without coolant control valve) 65―10 (with coolant control valve)	58―13 (without coolant control valve) 73―18 (with coolant control valve)
			Closed	ATDC (°)	7―52 (without coolant control valve) 1―56 (with coolant control valve)	6―51 (without coolant control valve) 1―56 (with coolant control valve)
LUBRICATION SYSTEM
Type					Force-fed type
Oil pressure (reference value) [Coolant temperature: 80—90 °C {176—194 °F}] (Without coolant control valve)				(kPa {kgf/cm2, psi}[rpm])	Low oil pressure: 110―175 {1.13―1.78, 16.0―25.3}[1,500] High oil pressure: 300―430 {3.06―4.38, 43.6―62.3}[4,500]
Oil pressure (reference value) [Oil temperature: 80—90 °C {176—194 °F}, coolant temperature: 80—90 °C {176—194 °F}] (With coolant control valve)				(kPa {kgf/cm2, psi}[rpm])	Low oil pressure: 135—165 {1.38—1.68, 19.6—23.9}[1,500] High oil pressure: 225—275 {2.30—2.80, 32.7—39.8}[4,500]
Oil pump	Type				Trochoid gear type (without coolant control valve) Vane pump type (with coolant control valve)
Oil filter	Type				Full-flow, paper element
	Bypass pressure		(kPa {kgf/cm2, psi})		78—118 {0.80—1.20, 12.0—17.1}
COOLING SYSTEM
Type					Water-cooled, Electromotive
Water pump		Type			Centrifugal, V-ribbed belt-driven
Thermostat		Type			Wax type
		Opening temperature		(°C {°F})	86.5―89.5 {188―193}
		Full-open temperature		(°C {°F})	100 {212}
		Full-open lift		(mm {in})	8.5 {0.33} or more
Radiator		Type			Corrugated fin type
Cooling system cap		Valve opening pressure		(kPa {kgf/cm2, psi})	93.2―122.6 {0.951―1.250, 13.6―17.7}
Cooling fan		Type			Electric type
		Number of blades			Cooling fan No.1: 5 Cooling fan No.2: 7
		Outer diameter		(mm {in})	320 {12.6}
		Cooling fan motor output		(W)	80
FUEL SYSTEM
Fuel injector			Type		High resistance
			Fuel supply method		Top-feed
			Drive types		Electronic type
Pressure regulator control pressure			(kPa {kgf/cm2, psi})		Approx. 430 {4.38, 62.4}
Fuel pump		Type			Electric
Fuel tank		Capacity (L {US gal, lmp gal})		2WD	56.0 {14.8, 12.3}
				4WD	58.0 {15.3, 12.8}
EMISSION SYSTEM
Catalyst		Type			WU-TWC (monolith) TWC (monolith)
EVAP control system		Type			Charcoal canister type
PCV system		Type			Closed type
CHARGING SYSTEM
Battery		Voltage		(V)	12
		Type (with i-stop)			Q-85
		Type and capacity (without i-stop)		(A·h/20HR)	55D23L (55) 75D23L (65)
Generator		Output		(V-A)	12-100
IGNITION SYSTEM
Ignition system		Type			SEI
		Spark advance			Electronic
		Firing order			1—3—4—2 (all cylinders independent firing)
Spark plug		Type			PE5R-18-110 PE5S-18-110
STARTING SYSTEM
Starter		Type			Coaxial reduction
		Output		(kW)	Without i-stop: 1.0	1.4
					With i-stop: 1.4
CONTROL SYSTEM
i-stop OFF switch					ON/OFF
Neutral switch					ON/OFF
CPP switch					ON/OFF
MAF sensor					Hot film
IAT sensor					Cold resistor
MAP sensor					Sealant diaphragm
TP sensor					Hall element
APP sensor					Hall element
CKP sensor					MR (Magnetic Resistance) element
CMP sensor					GMR element
ECT sensor					Thermistor
BARO sensor					Piezoelectric element
Fuel pressure sensor					Metal diaphragm
KS					Piezoelectric element
Current sensor					Shunt resistance, Thermistor
A/F sensor					Zirconia element
HO2S					Zirconia element
Clutch stroke sensor					Hall element
Power brake unit vacuum sensor					Piezoelectric element
Coolant control valve position sensor					Hall element
Engine oil level sensor					Ultra sonic sensor
Engine oil temperature sensor					Thermistor
Engine oil pressure sensor					Sealant diaphragm

Engine coolant capacity (approx. quantity)

Fuel type