ENGINE FEATURES [MZR 2.0 DISI]


id0100x2100200


On-board Diagnostic

To meet the EOBD regulations
•  Diagnostic test modes adopted*
Improved serviceability
•  DTCs adopted*
•  KOEO/KOER self-test function adopted
•  PID/DATA monitor function adopted*
•  Active command modes function adopted*


Mechanical

Improved engine performance
•  Variable valve timing mechanism adopted
•  Direct injection system adopted*
―  Cylinder head adopted*
―  Crankshaft pulley adopted*
―  Camshaft adopted*
Weight reduction
•  Aluminum-alloy adopted for mainframe parts (cylinder head and block)
Reduced vibration and noise
•  Crankshaft pulley with torsional damper adopted
•  Silent timing chain adopted
•  Deep skirt-type cylinder block adopted, composed of an integrated main bearing cap together with a ladder frame structure
•  Pendulum-type engine mounts adopted
Improved serviceability
•  Serpentine type drive belt adopted
•  Drive belt auto tensioner adopted
•  Timing chain adopted
•  Engine front cover with service holes adopted


Lubrication

Reduced noise
•  Aluminum alloy oil pan adopted
Reduced weight
•  Plastic oil strainer adopted
•  Resin oil filter cover adopted (cartridge type oil filter)
Improved lubricity
•  Trochoid gear type oil pump adopted
•  Oil jet valves adopted
•  Water-cooled type oil cooler adopted


Cooling System

Reduced weight
•  Down-flow type radiator with aluminum core and plastic tank adopted
•  Stainless steel thermostat with plastic thermostat cover adopted
Miniaturization
•  Built-in type water pump adopted
Reduced engine noise and vibration
•  Electric cooling fans adopted
Improved serviceability
•  Longer-life engine coolant (type FL22) adopted


Intake-air System

Improved engine torque
•  Variable intake air system adopted
Improved emission gas purification
•  Variable swirl system adopted*


Fuel System

Improved driveability
•  Direct injection system adopted*
―  High pressure fuel pump adopted*
―  Fuel injector for high pressure adopted*
Improved serviceability
•  Nylon tubes adopted for fuel hoses in the engine compartment and around the fuel tank, and quick release connectors adopted for joints
Reduction of evaporative gas
•  Returnless fuel system adopted


Emission System

Improved exhaust gas purification
•  EGR system adopted*
•  Catalytic converter system adopted
•  WU-TWC adopted


Charging System

Miniaturization
•  Non-regulator type generator with built-in power transistor adopted
Reduced operation noise
•  Generator with two delta connection type stator coils adopted


Ignition System

Improved reliability
•  Independent ignition control system with distributorless ignition coils adopted
Improved durability
•  Spark plugs with an iridium alloy center electrode and platinum tip ground electrode adopted


Starting System

Improved startability
•  Reduction type starter adopted
Improved safety
•  Starter interlock switch adopted (MTX)


Control System

Improved driveability
•  Direct injection system adopted*
―  High pressure fuel pump control adopted*
―  Fuel pressure sensor adopted*
―  BARO sensor adopted*
•  Drive-by-wire control adopted*
•  Variable intake air control adopted*
•  Variable valve timing control adopted*
•  Fuel injection control adopted*
•  ESA control adopted*
•  Purge control adopted*
Improved emission performance
•  Variable swirl control adopted*
•  A heater element is integrated with the A/F sensor and HO2S
•  Wide-range air/fuel ratio sensor has been adopted for the A/F sensor
•  EGR system adopted*
Improved accuracy
•  CMP sensor adopted*
•  CKP sensor adopted*
Improved reliability
•  Two-circuit throttle position sensor adopted
•  Two-circuit accelerator pedal position sensor adopted
Wiring harness simplification
•  CAN adopted

*  :MZR 2.0 DISI changes and additions