ENGINE FEATURES [ZJ, ZY]


id0100001002c0


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
•  A variable valve timing mechanism has been adopted.
Reduced engine weight
•  The shimless tappet has been adopted.
•  Main parts (cylinder head and cylinder block) are made of aluminum alloy.
Reduced engine noise and vibration
•  The cylinder head is made of aluminum alloy.
•  A silent timing chain has been adopted.
•  A highly rigid aluminum cylinder block and lower cylinder block have been adopted.
•  A crankshaft pulley with torsional damper has been adopted.
•  A pendulum type engine mount has been adopted.
Improved serviceability
•  A serpentine type drive belt has been adopted.
•  Drive belt tension is adjusted automatically with an auto-tensioner.
•  A timing chain has been adopted to eliminate the need for its replacement.
•  An engine front cover with a service hole has been adopted. (for unlocking the chain adjust ratchet and securing the tensioner arm.)


Lubrication

Reduced weight
•  Aluminum alloy oil pump cover adopted
•  Plastic oil strainer adopted
Improved lubricity
•  Trochoid gear type oil pump adopted
•  Oil jet valves adopted


Cooling System

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


Intake-air System

Improved engine torque
•  Variable intake air system adopted (with variable intake air system)
Improved noise reduction
•  Resonance chamber adopted (with resonance chamber)
Improved emission gas purification
•  Variable tumble system adopted


Fuel System

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
•  Catalytic converter system adopted
•  Exhaust gas recirculation (EGR) system adopted


Charging System

Miniaturization
•  Non-regulator type generator with built-in power transistor 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


Control System

Improved driveability
•  Drive-by-wire control adopted
•  Variable intake air control adopted
•  Variable valve timing control adopted
Improved emission performance
•  Variable tumble control adopted
•  A heater element is integrated with the A/F sensor and HO2S
•  All-range air/fuel ratio sensor adopted
•  EGR system adopted
Improved fuel economy
•  A drive-by-wire control (idle air control) has been adopted which contributes to lower fuel consumption
Wiring harness simplification
•  CAN adopted
Improved accuracy
•  Camshaft position sensor with GMR element adopted
•  Crankshaft position sensor with GMR element adopted
Improved reliability
•  Two-circuit throttle position sensor adopted
•  Two-circuit accelerator pedal position sensor adopted