APPENDIX ± 4RUNNER
4-Door WagonItemArea
Body Type
Vehicle Grade
Model Code
OverallLength mm (in.)
Width mm (in.)
Height* mm (in.)
Wheel Base mm (in.)
TreadFront mm (in.)
Rear mm (in.)
Effective Head RoomFront mm (in.)
Rear mm (in.)
Front mm (in.)
Rear mm (in.)
Front mm (in.)
Rear mm (in.)
Front mm (in.)
Rear mm (in.) Effective Leg Room
Shoulder Room
Overhang
Min. Running Ground Clearance mm (in.)
Angle of Approach degrees
Angle of Departure degrees
Curb Weight
Gross Vehicle WeightFront kg (lb)
Rear kg (lb)
Total kg (lb)
Front kg (lb)
Rear kg (lb)
Total kg (lb)
Fuel Tank Capacity (US.gal., Imp.gal)
Luggage Compartment Capacity m
3 (cu.ft.)
Max. Speed km / h (mph)
Max. Cruising Speed km / h (mph)
Max. Permissible
Speed
Turning Diameter
(Outside Front)1st Gear km / h (mph)
2nd Gear km / h (mph)
3rd Gear km / h (mph)
4th Gear km / h (mph)
Wall to Wall m (ft.)
Curb to Curb m (ft.)
Engine Type
Valve Mechanism
Bore x Stroke mm (in.)
Displacement cm
3 (cu.in.)
Compression Ratio
Carburetor Type
Research Octane No. RON
Max. Output (SAE-NET) kW / rpm (HP@rpm)
Max. Torque (SAE-NET) N
.m / rpm (lb-ft@rpm)
Battery Capacity (5HR) Voltage & Amp. hr.
Generator Output Watts
Starter Output kW
Clutch Type
Transmission Type
Transmission Gear
Ratio
Transfer Gear Ratio H4 / L4
Differential Gear Ratio (Front / Rear)
Brake Type
Parking Brake Type
Brake Booster Type and Size in.
Proportioning Valve Type
Suspension Type
Stabilizer Bar
Steering Gear Type
Steering Gear Ratio
Power Steering TypeIn First
In Second
In Third
In Fourth
In Fifth
In Reverse
Front
Rear
Front
Rear
Front
Rear
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
Major Dimensions & Vehicle Weights Performance Engine Engine
Chassis
Electrical
U.S.A.
Length mm (in.)
Width mm (in.)
Height mm (in.)Ð SR5 Limited
Cargo Space
Differential Gear Size (Front / Rear) in.
142
4RUNNER
RZN180L-GKMSKA RZN180L-GKPSKA VZN180L-GKPGKA VZN180L-GKPZKA
4655 (183.2)
1690 (66.5), 1730 (68.1)*
21800 (70.9)
1715 (67.5), 1740 (68.5)*21740 (68.5)
2675 (105.3)
1505 (59.3)
1495 (58.9), 1510 (59.4)*
21510 (59.4)
998 (39.3)
983 (38.7)
1081 (42.6)
888 (35.0)
1361 (53.6)
1354 (53.3)
1147 (45.2)
972 (38.3)
983 (38.7)
920 (36.2)
1055 (41.5), 1060 (1055)*
21060 (41.7)
250 (9.8), 260 (10.2)*2260 (10.2)
32, 35*235
26, 28*228
826 (1820) 837 (1845) 869 (1915) 896 (1975)
735 (1620) 744 (1640) 764 (1685) 787 (1735)
1561 (3440) 1581 (3485) 1633 (3600) 1682 (3710)
ÐÐÐÐ
ÐÐÐÐ
2381 (5250)
70 (18.5, 15.4)
ÐÐÐÐ
165 (103)
132 (82)
42 (26) 56 (35) 56 (35), 59 (37)*
259 (37)
78 (49), 77 (48)*2104 (65), 102 (64)*2104 (65), 107 (67)*2107 (67)
121 (75), 119 (74)*2ÐÐÐ
ÐÐÐÐ
12.0 (39)
11.6 (38)
3RZ-FE5VZ-FE
16 Valve, DOHC24 Valve, DOHC
95.0 x 95.0 (3.74 x 3.74)93.5 x 82.0 (3.68 x 3.23)
2694 (164.3)3378 (206.1)
9.5 : 19.6 : 1
SFI
91
112 / 4800 (150@4800)137 / 4800 (183@4800)
240 / 4000 (177@4000)294 / 3600 (217@3600)
12 ± 55 12 ± 55, 64*
112 ± 48, 55*1
840
1.4, 1.8*
11.4, 2.0*11.4, 1.8*1
Dry, Single Plate Ð Ð Ð
W59 A340E
3.954 2.804
2.141 1.531
1.384 1.000
1.000 0.705
0.810 Ð Ð
4.091 2.393
ÐÐÐÐ
± / 3.727, ± / 4.100*
2± / 3.909, ± / 4.300*2± / 3.727, ± / 4.100*2± / 4.100
±/8º
Ventilated Disc
L.T. Drum
L.T. Drum
Tandem 8º + 9º
LSP & BV, P & BV*
3P & BV P & BV
Double Wishbone, Coil
4 Links
STD
STD
Rack & Pinion
20.0
Integral Type
* : Unladen Vehicle *
2: With P265 / 70R16 Tire *4: Differential Gear Ratio: 4.300
*1: Option *3: With ABS *5: Model Canada
NEW FEATURES Ð 5S-FNE ENGINE
NEW FEATURES
6
5S-FNE ENGINE
DESCRIPTION
The 5S-FNE engine is a new engine that uses CNG (Compressed Natural Gas) as fuel, which has been
developed based on the 5S-FE gasoline engine.
The main component of natural gas is methane (CH
4), which has fewer carbons (C) than gasoline (mean
molecular formula: C
7.5H13.4). Therefore, the amount of CO2 discharged by this engine is approximately
70% that of the gasoline engine. Furthermore, this engine achieves low-emission operation by precisely
controlled air-fuel ratio and using special catalysts for the CNG application.
However, because the fuel is in the gaseous form, its volumetric efficiency is low, causing lower power
output if this fuel is used in the base engine.
Therefore, the 5S-FNE engine has adopted the following features: a high compression ratio, the intake
valves with early closed timing, the intake and exhaust valves with increased lift, a low back pressure muffler
made possible by the 2-way exhaust system, injectors for gaseous fuel, and a catalytic converter designed
exclusively for CNG application. At the same time, precision air-fuel ratio control is effected through the
use of the air-fuel ratio sensor* and the heater oxygen sensor, thus achieving the level of performance that
is equivalent to the base engine. Moreover, this engine realizes extremely low emissions and restoring engine
torque.
*: Already adopted on the California specification 5S-FE engine.
Specifications
Item
5S-FNE Engine5S-FE Engine
No. of Cyls. & Arrangement4-Cylinder, In-Line
Valve Mechanism16-Valve DOHC,
Belt & Gear Drive
Combustion CamberPentroof Type
ManifoldsCross-Flow
Fuel SystemSFI
Displacement cm3 (cu. in.)2164 (132.0)
Bore Stroke mm (in.)87.0 91.0 (3.43 3.58)
Compression Ratio11.0 : 19.5 : 1
Max. Output [SAE-NET]88 kW @ 5200 rpm
(118 HP @ 5200 rpm)
99 kW @ 5200 rpm
(133 HP @ 5200 rpm)
97 kW @ 5200 rpm*
(130 HP @ 5200 rpm)*
Max. Torque [SAE-NET]178 N´m @ 2400 rpm
(131 ft´lbf @ 2400 rpm)
199 N´m @ 4400 rpm
(147 ft´lbf @ 4400 rpm)
197 N´m @ 4400 rpm*
(145 ft´lbf @ 4400 rpm)*
IntakeOpen35 BTDC
Valve
IntakeClose385 ABDC435 ABDCValve
Timing
ExhaustOpen455 BBDCExhaustClose35 AT D C
Fuel Octane Number RON13091
Oil GradeAPI SJ EC or ILSAC
*: California Specification Models
NF
NEW FEATURES Ð 5S-FNE ENGINE11
INTAKE AND EXHAUST SYSTEM
1. Throttle Body
The throttle body is basically the same as that of the 5S-FE engine. However, to ensure the starting perfor-
mance at low temperatures, the air passage for the IAC (Idle Air Control) has been increased on the 5S-FNE
engine. The IAC valve is a 1-coil type with a built-in driver.
2. Exhaust Manifold
As in the California specification 5S-FE engine,
the stainless steel exhaust manifold and WU-TWC
(Warm Up Three-Way Catalytic Converter) have
been integrated to improve the warm-up perfor-
mance of TWC, thus reducing exhaust emissions.
However, the 5S-FNE engine uses a catalytic con-
verter that has been designed exclusively for the
CNG application, in which the loading of the noble
metal has been increased.
3. Exhaust Pipe
General
To secure sufficient luggage compartment capacity, the main muffler has been relocated below the rear
seat. Furthermore, the muffler capacity has been increased.
A 2-way exhaust control system has been adopted to improve engine performance and reduce
the exhaust noise.
Similar to the WU-TWC, the TWC (Three-Way Catalytic Converter) has been designed exclusively for
the CNG application, in which the loading of the noble metal has been increased.
Main Muffler
167CN06TWCSub Muffler
p12WU-TWC
167CN05
NEW FEATURES Ð 5S-FNE ENGINE 14
2. Fuel Tank
A fuel tank made with carbon fiber and alumi-
num lining has been adopted to prevent weight
increase.
Because the fuel tank expands along with the
increase in the pressure of the compressed gas,
the tank bands contain coil springs to accommo-
date the fluctuation in the perimeter of the tank.
The fuel tank is provided with a tank valve as-
sembly.
3. Tank Valve Assembly
General
The tank valve assembly is mounted on the tank
and consists of a fuel shutoff valve, inlet check
valve, relief valve and two manual cutoff valves.
167CN08
Coil Springs
Tank Valve
AssemblyTank Band
167CN26
Fuel
Temperatur
Sensor
Tank Valve Assembly
NEW FEATURES Ð 5S-FNE ENGINE 16
6. Fuel Filter
Mounted below the vehicle floor, the fuel filter re-
moves any moisture or oil from the fuel.
7. Fuel Pressure Regulator
The fuel pressure regulator regulates the fuel pressure by reducing the pressure of the compressed natural
gas from the fuel tank to the fuel injection pressure, which is 8 km/cm
2 (114 psi, 785 kPa).
Similar to the fuel shutoff valve for the fuel tank, a fuel shutoff valve is provided on the fuel inlet side
of the fuel pressure regulator to shut off the supply of fuel when the engine is stopped or during abnormal
conditions.
An oil separator that traps the moisture and oil in the fuel is provided on the low pressure side.
A built-in relief valve is provided to protect the parts located on the low pressure side.
While the fuel pressure is being reduced by the fuel pressure regulator, the Joule-Thomson effect associat-
ed with the expansion of the gas causes the fuel pressure regulator to be cooled excessively, exerting
unfavorable influence on the rubber parts such as diaphragms and fuel hoses.
Therefore, to raise the gas temperature, a water passage is provided in the fuel pressure regulator to
allow the engine coolant to warm the regulator.
Oil
Separator
Water Passage
Fuel
Shutoff
Valve
Relief Valve
167CN24 167CN25167CN10
NF
NEW FEATURES Ð 5S-FNE ENGINE19
ENGINE CONTROL SYSTEM
1. General
An engine control system based on the 5S-FE engine has been adopted. The knock sensor has been discontin-
ued because natural gas has a high octane value and is less susceptible to knocking.
The engine control system of 5S-FNE and 5S-FE engines are compared below.
System
Outline5S-FNE5S-FE
SFI
Sequential
A D-type SFI system is used, which indirectly detects
intake air volume by manifold absolute pressure sensor.
Sequential
Multiport Fuel
Injection
The fuel injection system is a sequential multiport fuel
injection system.
Ignition timing is determined by the ECM based on sig-
nals from various sensors.
ESA
Electronic Spark
AdvanceThe ECM corrects the ignition timing in response to en-
gine knocking in accordance with the signals received
from the knock sensor.
Ð
Advance
Torque control correction during gear shifting had been
used to minimize the shift shock.*1
IAC
(Idle Air Control)A rotary solenoid type IAC valve controls the fast idle
and idle speeds.
(1-Coil Type
Built-in Driver)(2-Coil Type)
Fuel Pump ControlFuel pump operation is controlled by signal from the
ECM.Ð
Fuel Cut-Off
Control
The fuel shutoff valves for the fuel tank, fuel pressure
regulator, and delivery pipe are shut off to stop the sup-
ply of fuel when the ignition switch is turned OFF or
during abnormal conditions (such as engine stalling,
SRS airbag deployed, etc.).
Ð
Oxygen Sensor
and Air Fuel Ratio
Sensor
Heater ControlMaintains the temperature of the oxygen sensor and air
fuel ratio sensor at an appropriate level to increase accu-
racy of detection of the oxygen concentration in the ex-
haust gas.
*2
EGR Cut-Off
ControlCuts off EGR according to the engine condition to
maintain drivability of the vehicle and durability of the
EGR components.
Evaporative
Emission ControlThe ECM controls the purge flow of evaporative emis-
sions (HC) in the charcoal canister in accordance with
engine conditions.
Ð
Air Conditioning
Cut-Off ControlBy turning the air conditioning compressor ON or OFF
in accordance with the engine condition, drivability is
maintained.
*3*3
When the ECM detects a malfunction, the ECM diag-
noses and memorized the failed section.
DiagnosisThe diagnosis system includes a function that detects a
malfunction in the evaporative emission control sys-
tem.
Ð
Fail-Safe
When the ECM detects a malfunction, the ECM stops
or controls the engine according to the data already
stored in memory.
*1: Only for Automatic Transaxle Model
*
2: Air fuel ratio sensor only for California specification model.
*
3: The air conditioning magnet clutch controled by the ECM
NEW FEATURES Ð 5S-FNE ENGINE
(Continued)
PIM
NE
G
THW
THA
VTA
AF
#10+
#20
#30
#40
IGT1,
IGT2
IGF
RSD
EGR
OX2
HTAF
HT2
MGC
FUEL W
PSW
ELS
NSW
F/PS
A/C SW
ECM
STA
SPD
R,2,L
STP
#40+ #30+ #20+ #10
FUEL
20
2. Construction
The configuration of the engine control system in the 5S-FNE engine is as shown in the following chart.
SENSORS
MANIFOLD ABSOLUTE
PRESSURE SENSOR
CRANKSHAFT POSITION
SENSOR
CAMSHAFT POSITION
SENSOR
ENGINE COOLANT TEMP.
SENSOR
INTAKE AIR TEMP. SENSOR
THROTTLE POSITION SENSOR
IGNITION SWITCH
COMBINATION METER
wVehicle Speed Signal
AIR FUEL RATIO SENSOR
(Bank 1, Sensor 1)
HEATED OXYGEN SENSOR
(Bank 1, Sensor 2)
POWER STEERING OIL
PRESSER SWITCH
TAILLIGHT & REAR WINDOW
DEFOGGER SYSTEM
PARK/NEUTRAL POSITION
SWITCH
STOP LIGHT SWITCH
AIR CONDITIONING SWITCH
AIRBAG SENSOR ASSEMBLY
wFuel Cut-Off Signal
ACTUATORS
SFI
No. 1 INJECTOR
No. 2 INJECTOR
No. 3 INJECTOR
No. 4 INJECTOR
ESA
IGNITERS and
IGNITION COILS
SPARK PLUGS
IAC
CONTROL VALVE
EGR
VSV
AIR FUEL RATIO SENSOR
HEATER CONTROL
AIR FUEL RATIO SENSOR
HEATER
OXYGEN SENSOR HEATER
CONTROL
HEATED OXYGEN SENSOR
HEATER
AIRE CONDITIONING
CUT-OFF CONTROL
MAGNET CLUTCH RERAY
FUEL GAGE
LOW FUEL LEVEL WARNING
LIGHT
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