Mazda CX-9 2007 Service Highlights page 16

ENGINE FEATURES [MZI-3.5]
On-board Diagnostic
To meet the EOBD regulations
Improved serviceability
Mechanical
Improved engine
performance
Weight reduction
Reduced vibration and noise
Improved serviceability
Lubrication
Reduced noise
Improved lubricity
Cooling System
Improved reliability
Reduced weight
Miniaturization
Reduced engine noise and
vibration
Reduced power consumption
Improved serviceability
Intake-air System
Improved noise reduction
Fuel System
Reduction of evaporative gas
Emission System
Improved exhaust gas purification
Charging System
Reduced operation noise
Ignition System
Improved reliability
Improved durability
Starting System
Improved startability
Control System
Improved driveability
Improved emission performance
Improved fuel economy
Wiring harness simplification
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OUTLINE [MZI-3.5]
• Diagnostic test modes adopted
• DTCs adopted
• KOEO/KOER self-test function adopted
• PID/DATA monitor function adopted
• Simulation test function adopted
• Variable valve timing mechanism adopted
• Aluminum-alloy adopted for mainframe parts (cylinder head and block)
• Aluminum-alloy cylinder head adopted
• Crankshaft pulley with torsional damper adopted
• Pendulum-type engine mounts adopted
• Drive belt auto tensioner adopted
• Timing chain adopted
• Aluminum alloy oil pan adopted
• Trochoid gear type oil pump adopted
• Water-cooled type oil cooler adopted
• Degassing type coolant reserve tank adopted
• Down-flow type radiator with aluminum core and plastic tank adopted
• Built-in type water pump adopted
• Electric cooling fans adopted
• Fan control module adopted
• Fan control module adopted
• Longer-life new engine coolant (type FL22) adopted
• Resonance chamber adopted
• Returnless fuel system adopted
• Catalytic converter system adopted
• Generator with two delta connection type stator coils adopted
• Independent ignition control system with distributorless ignition coils adopted
• Spark plugs with platinum-tipped center electrode adopted
• Reduction type starter adopted
• Drive-by-wire control adopted
• Fuel injection control adopted
• Fuel pump control adopted
• Variable valve timing control adopted
• HO2S heater control adopted
• CAN adopted
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