This is Toyota 1NZ Engine working system

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1NZ-FE ENGINE

The 1NZ-FE engine is a in-line, 4-cylinder, 1.5 liter, 16-valve DOHC engine.

VVT-I (Variable Valve Timing-intelligent)

DIS (Direct Ignition System)

ETCS-I (Electronic Throttle Control System-intelligent)

All are used on this engine in order to realize high performance, quietness, fuel economy and clean emission.

1) Engine Specification

• 4-Cylinder, In-line
• Valve Mechanism 16-Valve DOHC, Chain Drive (with VVT-i)
• Combustion Chamber Pentroof Type
• Manifolds Cross-Flow
• Fuel System SFI
• Ignition System DIS
• Displacement cm3
•  (cu. in.) 1497 (91.3)
• Bore x Stroke mm (in.) 75.0 x 84.7 (2.95 x 3.33)
• Compression Ratio 10.5 : 1
• Max. Output*1
• (SAE-NET) 79 kW @ 6000 rpm (106 HP @ 6000 rpm)
• Max. Torque*1
• (SAE-NET) 139 N.m @ 4200 rpm (103 ft lbf @ 4200 rpm)
• Intake
• Open -7
•  – 33
•  BTDC
• Valve
• Intake
• Valve Close 52
•  – 12
•  ABDC
• Timing
• Exhaust
• g Open 42
•  BBDC
• Exhaust Close 2
•  ATDC
• Firing Order 1 – 3 – 4 – 2
• Research Octane Number 90 or higher
• Octane Rating 87 or higher
• Oil Grade ILSAC
• Tailpipe Emission Regulation TIRE2, ULEV-II
• Evaporative Emission Regulation ORVR
• Engine Service Mass*2
• kg (lb) Engine Service Mass M/T 83.2 (183.4)
• (Reference) kg (lb.) A/T 77.8 (171.5)
• 1: Maximum output and torque rating is determined by revised SAE J1349 standard.
• 2: Weight shows the figure with the oil fully filled.