2NZ-FE ENGINE
U DESCRIPTION
The 2NZ-FE is a 1.3 liter in-line, 4-cylinder, 16-valve DOHC engine.
The VVT-i (Variable Valve Timing-intelligent) system, DIS (Direct Ignition System) and ETCS-i (Electronic Throttle Control System-intelligent) are used on this engine in order to realize high performance, quietness, fuel economy and clean emission.
b Engine Specifications 圃
| No. of Cyls. & Arrangement | 4-Cylinder, In-line | ||
|---|---|---|---|
| Valve Mechanism | 16-Valve DOHC, Chain Drive (with VVT-i) | ||
| Combustion Chamber | Pentroof Type | ||
| Manifolds | Cross-Flow | ||
| Fuel System | EFI | ||
| Ignition System | DIS | ||
| Displacement | cm 3 (cu. in.) | 1299 (79.3) | |
| Bore x Stroke | mm (in.) | 75.0 x 73.5 (2.95 x 2.89) | |
| Compression Ratio | 10.0 : 1 | ||
| Max. Output* 1 | (SAE-NET) | 60 kW @ 6000 rpm (106 HP @ 6000 rpm) | |
| Max. Torque* 1 | (SAE-NET) | 119 N . m @ 4200 rpm (103 ft lbf@ 4200 rpm) | |
| Valve Timing | Intake | Open | 2 。 BTDC |
| Close | 43 。 ABDC | ||
| Exhaust | Open | 34 。 BBDC | |
| Close | 2 。 ATDC | ||
| Firing Order | 1 - 3 - 4 - 2 | ||
| Fuel Octane Number | 91 or more | ||
| Oil Grade | ILSAC |
Table Caption: This table details the technical specifications of an engine, including its cylinder arrangement, valve train, fuel and ignition systems, performance metrics, and timing details. It also provides information on required fuel octane and oil grade.
*1 : Maximum output and torque rating is determined by revised SAE J1349 standard.
U FEATURES OF 2NZ-FE ENGINE
The 2NZ-FE engine has been able to achieve the following performance through the adoption of the items listed below.
- (1) High performance and fuel economy
- (2) Low noise and vibration
- (3) Lightweight and compact design
- (4) Good serviceability
- (5) Clean emission
| Section | Item | (1) | (2) | (3) | (4) | (5) |
|---|---|---|---|---|---|---|
| Engine Proper | A cylinder block made of aluminum is used. | O | ||||
| An offset crankshaft is used. | O | O | O | |||
| The taper squish shape is used for the combustion chamber. | O | O | ||||
| Valve Mechanism | A timing chain and chain tensioner are used. | O | O | O | ||
| The VVT-i system is used. | O | O | ||||
| Intake and Exhaust System | Intake manifold made of plastic is used. | O | ||||
| The linkless-type throttle body is used. | O | O | ||||
| A stainless steel exhaust manifold is used. | O | |||||
| Two TWCs (Three Way Catalytic Converter) are used. | O | |||||
| A rearward exhaust layout is used to realize the early activation of the catalyst. | O | |||||
| Fuel System | 12-hole type injector is used. | O | O | |||
| The fuel returnless system is used. | O | O | O | |||
| Quick connectors are used to connect the fuel hose with the fuel pipes. | O | |||||
| Ignition System | The long-reach type spark plugs are used. | O | ||||
| The DIS (Direct Ignition system) makes ignition timing adjustment unnecessary. | O | O | O | |||
| Engine Control System | The ETCS-i (Electronic Throttle Control System-intelligent) is used. | O | O | |||
| The non-contact sensor is used in the throttle position sensor and accelerator pedal position sensor. | O | |||||
| The cranking hold function is used. | O | |||||
| Evaporative emission control system is used. | O | |||||
| The use of an air fuel ratio sensor allows for precise control. | O |
**Table Caption: This table lists various components and systems of an engine, indicating their presence in different engine variations (represented by columns 1 through 5). Each row specifies a particular feature or
