Mazda CX-5 Service & Repair Manual: Engine

Mazda CX-5 Service & Repair Manual / Engine / General / Engine

Special Features

For SKYACTIV-G 2.0, the following is performed to lower fuel consumption.

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.

L-jetronic*1 and D-jetronic*2 type detectors have been adopted for intake air amount detection, improving the accuracy of the intake air amount measurement.

MAF sensor adopted
MAP sensor adopted
IAT sensor No.1 and No.2 adopted

Valve timing control has been adopted on both sides of the intake and exhaust, improving fuel economy and emission performance.

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 control has been adopted reducing engine load.

Engine oil solenoid valve adopted

Fuel pump control has been adopted improving startability and safety.

Fuel pump control module adopted

With the adoption of the ion sensor, which detects pre-ignition, engine reliability has been improved.

*1 Measures the intake air amount directly using the MAF sensor.

*2 Measures the intake air pressure introduced into the cylinder using the MAP sensor and calculates the intake air amount indirectly.

Specification


Item					Specification
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, cu in})			1,998 {1,998, 121.9}
Bore ? stroke		(mm {in})			83.5 ? 91.2 {3.29 ?3.59}
Compression ratio					13.0:1
Compression pressure			(kPa {kgf/cm2, psi} [rpm])		885 {9.02, 128} [300]
Valve timing		IN	Open	BTDC (°)	-32?42
		IN	Closed	ABDC (°)	110?36
		EX	Open	BBDC (°)	Type A1: 54?11 Type B2: 54?9
		EX	Closed	ATDC (°)	Type A1: 7?50 Type B2: 7?52
LUBRICATION SYSTEM
Type					Force-fed type
Oil pressure (reference value) [Water temperature 80?90 degrees C]				(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 pump	Type				Trochoid gear type
Oil filter	Type				Full-flow, paper element
Oil filter	Bypass pressure		(kPa {kgf/cm2, psi})		78—118 {0.80—1.20, 12.0—17.1}
Oil capacity (approx. quantity)	Total (dry engine)		(L {US qt, lmp qt})		Without oil cooler : 4.9 {5.2, 4.3} With oil cooler : 5.0 {5.3, 4.4}
	Oil replacement		(L {US qt, lmp qt})		4.0 {4.2, 3.5}
	Oil and oil filter replacement		(L {US qt, lmp qt})		4.2 {4.4, 3.7}
COOLING SYSTEM
Type					Water-cooled, Electromotive
Coolant capacity [Without oil cooler] (approx. quantity)			(L {US qt, lmp qt})		MTX : 7.4 {7.8, 6.5} ATX : 7.6 {8.0, 6.7}
Coolant capacity [With oil cooler] (approx. quantity)			(L {US qt, lmp qt})		MTX : 7.5 {7.9, 6.6} ATX : 7.8 {8.2, 6.9}
Water pump		Type			Centrifugal, V-ribbed belt-driven
Thermostat		Type			Wax type
		Opening temperature		(°C {°F})	80.5?83.5 {177?182}
		Full-open temperature		(°C {°F})	95 {203}
		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}
Fuel tank		Capacity (L {US gal, lmp gal})		AWD	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
Battery		Type and capacity (5-hour rate)		(A·h)	55D23L (48) 75D23L (52)
Generator		Output		(V-A)	12-100
		Regulated voltage			Controlled by PCM
		Self diagnosis function			Controlled by PCM
IGNITION SYSTEM
Ignition system		Type			SEI
		Spark advance			Electronic
		Firing order			1—3—4—2 (all cylinders independent firing)
		Firing order
Spark plug		Type			PE01-18-110 PE02-18-110 PE5R-18-110 PE5S-18-110
STARTING SYSTEM
Starter		Type			Coaxial reduction
Starter		Output		(kW)	1.0
CONTROL SYSTEM
MAF sensor					Hot film
IAT sensor No.1, No.2					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 No.1, No.2					Thermistor
BARO sensor					Piezoelectric element
Fuel pressure sensor					Metal diaphragm thin film distortion gauge
KS					Piezoelectric element
A/F sensor					Zirconium element
HO2S					Zirconium element
Fuel tank pressure sensor					Piezoelectric element

*1 The part number marked on the hydraulic variable valve timing actuator is for the PE01 12 4Y0 or PE01 12 4YA0A engine.

*2 The part number marked on the hydraulic variable valve timing actuator is for engine, with a part number other that indicated by *1.

Engine oil specification


Item	U.S.A. and CANADA	Except U.S.A. and CANADA
Engine oil grade
Engine oil grade	ILSAC GF-5	API SM or ILSAC
Engine oil viscosity	0W-20	5W-30

Fuel type


Fuel	Octane Rating* (Anti-knock index)
Regular unleaded fuel	87 [(R+M)/2 method] or above (91 RON or above)

* U.S. federal law requires that octane ratings be posted on gasoline station pumps.

Engine Tune Up

Engine Tune-up Preparation NOTE: If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to the idle speed. This is due to the fuel cut co ...

Fresh Air Duct

Purpose, Function Conducts fresh air from outside the engine compartment. Increases air density by taking fresh air, which is cooler than the engine compartment, to enhance the charg ...

Other materials:

Fuel Tank Pressure Sensor
Purpose/Function The fuel tank pressure sensor detects the fuel tank pressure. Fuel tank pressure sensor is only used for OBD. Construction The fuel tank pressure sensor is equipped to the charcoal canister. A piezoelectric-type sensor has been adopted. ...

Fuel Gauge Sender Unit Removal/Installation [2 Wd]
WARNING: Always keep sparks and flames away from fuel when servicing the fuel system. Fuel can be easily ignited which could cause serious injury or death, and damage to equipment. Fuel line spills and leakage from the pressurized fuel system are dangerous. Fuel can ignite a ...

Tcs Control
Outline The TCS control actuates torque reduction through engine control, as well as using brake control to control traction. NOTE: Engine control: Engine output is lowered by fuel cut and ignition timing control to reduce the traction, preventing driving wheel slip. ...