ENGINE FEATURES [L8, LF, L5]

id0100001002c7

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 (LF, L5)

Weight reduction

•  Aluminum-alloy adopted for mainframe parts (cylinder head and block)

Reduced vibration and noise

•  Crankshaft pulley with torsional damper adopted

•  Dual-mass crank pulley adopted (L5)

•  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 (LF, L5) (if equipped)

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 driveability

•  Variable air duct (VAD) system adopted (L5)

Improved engine torque

•  Variable intake air system adopted (LF, L5)

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

•  EGR system adopted

•  Catalytic converter system adopted

•  WU-TWC adopted (L5)

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) (if equipped)

Control System

Improved driveability

•  Drive-by-wire control adopted

•  Variable intake air control adopted (LF, L5)

•  Variable valve timing control adopted (LF, L5)

Improved emission performance

•  Variable tumble 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 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 reliability

•  Two-circuit throttle position sensor adopted

•  Two-circuit accelerator pedal position sensor adopted

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

Improved engine performance	• Variable valve timing mechanism adopted (LF, L5)
Weight reduction	• Aluminum-alloy adopted for mainframe parts (cylinder head and block)
Reduced vibration and noise	• Crankshaft pulley with torsional damper adopted • Dual-mass crank pulley adopted (L5) • 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

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 (LF, L5) (if equipped)

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

Improved engine driveability	• Variable air duct (VAD) system adopted (L5)
Improved engine torque	• Variable intake air system adopted (LF, L5)
Improved emission gas purification	• Variable tumble system 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

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

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

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

Improved driveability	• Drive-by-wire control adopted • Variable intake air control adopted (LF, L5) • Variable valve timing control adopted (LF, L5)
Improved emission performance	• Variable tumble 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 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 reliability	• Two-circuit throttle position sensor adopted • Two-circuit accelerator pedal position sensor adopted