2000 TOYOTA CAMRY torque

47 ENGINEÐ1MZ±FE ENGINE

FUEL SYSTEM
1. Fuel Returnless System
The new Camry has adopted a fuel returnless system to reduce evaporative emissions. With the pressure regulator
housed inside the fuel tank, this system elimnates the return of fuel from the engine area. This prevents the internal
temperature of the fuel tank from risisng, and reduces evaporative emissions.

ENGINE MOUNTING
1. General
The internal ofifice of the fron tmount has been modified to improve the riding comfort and to ensure a quieter
operation at idling.
The characteristics of the rear mount, left mount, torque rod, and absorber have been optimized.

48ENGINEÐ1MZ±FE ENGINE

ENGINE CONTROL SYSTEM
1. General
The engine control system of the new 1MZ±FE engine is basically the same in construction and operation as that of
the previous 1MZ±FE engine. However, the fuel pressure control has been discontinued and the EGR control system
has been changed.
The engine control system of the new 1MZ±FE engine and previous 1MZ±FE engine are compared below.
System
OutlineNewPrevious
SFI
(SequentialA L±type SFI system directly detects intake air mass with
a hot wire type mass air flow meter.(q
Multiport Fuel
Injection)The fuel injection system is a sequential multiport fuel
injection system.
ESA
Ignition Timing is determined by the ECM based on
signals from various sensors. The ECM corrects ignition
timing in response to engine knocking.

(Electronic Spark2 knock sensors are used to improve knock detection.(p
Advance)In vehicles equipped with automatic transaxle, torque
control correction during gear shifting has been used to
minimize the shift shock.

IACA rotary solenoid type IAC valve controls the fast idle(Idle Air Control)
A rotary solenoid type IAC valve controls the fast idle
and idle speeds.
ACIS
(Acoustic Control
The intake air passages are switched according to the en-
gine speed and throttle valve angle to increase perfor(Acoustic Control
Induction System)
gine speed and throttle valve angle to increase perfor-
mance in all speed ranges.
Fuel Pressure
ControlIn hot engine conditions, the fuel pressure is increased to
improve restartability.
Oxygen Sensor
Heater ControlMaintains the temperature of the oxygen sensor at an
approppiate level to increase accuracy of detection of
the oxygen concentration in the exhaust gas.

EGR Cut±Off
ControlCuts off EGR according to the engine condition to
maintain drivability of the vehicle and durability of
EGR components.
Ð
EGR Control
Uses the duty control type VSV and EGR valve position
sensor, controlling the EGR volumne in accordance with
engine conditions.
Ð
Evaporative
Emission ControlThe ECM controls the purge flow of evaporative emis-
sions (HC) in the charcoal canister in accordance with
engine conditions.

Diagnosis
When the ECM detects a malfunction, the ECM diagnoses
and memorizes the failed section.
DiagnosisThe diagnosis system includes a function that detects a
malfunction in the evaporative control system.Ð
Fail SafeWhen the ECM detects a malfunction, the ECM stops
or controls the engine according to the data already stored
in memory


69 CHASSISÐBRAKES
 ABS & TRAC SYSTEM
1. General
The ABS & TRAC system totally controls the engine torque control through the fuel cutoff and the braking of the
driving wheels (front wheels). If helps to avoid slippage of the driving wheels that tends to happen during starting
and acceleration and to maintain an optimal driving force according to the road surface conditions. The system
eliminates the need for a subtle accelerator pedal opeation and ensures vehicle stability when starting, accelerating
or turning on slippery roads.
2. System Diagram

80 CHASSISÐBRAKES
ABS & TRAC ECU
1) Wheel Speed Control
The ABS & TRAC ECU constantly receives signals from 4 speed sensors and calculates the speed of each wheel and
vehicle speed.
During sudden acceleration or driving on a slippery surface, if the drive wheels (front wheels) start to slip, the
difference in speed between the drive wheels are slipping.
Then, the ABS & TRAC ECU executes the right and left independent control of the front wheel brakes, the engine
torque control through fuel cutoff, and shift timing control according to the extent of the slip.
TRAC operation processes are described below.
1. The vehicle speed is determined by way of the rear wheel speed. This speed is then compared to the speed of the
front wheels, which are the drive wheels, to determine the slip condition of the drive wheels (front wheels).
2. The target control speed for the drive wheels is set based on the estimated vehicle speed.
3. If the speed of the front wheels, which are the drive wheels, exceeds the control starting speed, the ABS & TRAC
ECU determines that a slip has occurred and cuts off fuel according to the number of cylinders. By executing
engine torque control and brake control in this manner, the system regulates the speed
so that front wheels attain the target control speed. In addition, the system executes control to
prohibit the shifting of the automatic transaxle at this
time.
4. TRAC control ends when the drive wheels move to non±slippery surface or when the driver releases the
accelerator pedal.

120APPENDIX
MAJOR TECHNICAL SPECIFICATIONS
Item AreaU.S.A..
.Body Type4±Door SedanVehicle GradeCELEXLEModel CodeSXV20L±CEMDKASXV20L±CEPDKASXV20L±A(C)EPNKASXV20L±A(C)EPGKALength mm (in.)4785(188.4)uuu
OverallWidth mm (in.)1780(70.1)uuuOverallHeight* mm (in.)1415 (55.7)uuuWheel Base mm (in.)2670(105.1)uuu
TreadFront mm (in.)1545 (60.8)uuuTreadRear mm (in.)1520 (59.8)uuu
Effective Head RoomFront mm (in.)1105 (43.5)uuuEffective Head RoomRear mm (in.)902 (35.5)uuu
sEffective Leg RoomFront mm (in.)980 (38.6)uuu
ghtsEffective Leg RoomRear mm (in.)940 (37.0)uuu
Weig
h
Shoulder RoomFront mm (in.)1427 (56.2)uuu
icle WShoulder RoomRear mm (in.)1425 (56.1)uuu
VehicOverhangFront mm (in.)970 (38.2)uuu
s & VeOverhangRear mm (in.)1140 (44.9)uuu
sions
&Min.. Running Ground Clearance mm (in.)145 (5.7)uuu
mensioAngle of Approach degrees175uuu
DimeAngle of Departure degrees175uuu
ajor DFront kg (lb)820 (1808)840 (11852)860 (1896)*1, 865 (1970)*2865 (1907)*1, 870 (1918)*2
MajoCurb WeightRear kg (lb)530 (1168)u530 (1168)*1, 535 (1179)*2
530 (1168)*1, 535 (1179)*2
MCurb WeightTotal kg (lb)1350 (2976)1370 (3020)1390 (3064)*1, 1400 (3086)*2
1395 (3075)*1, 1405 (3097)*2
Front kg (lb)980 (2161)uuuGross Vehicle WeightRear kg (lb)870 (1918)uuuGross Vehicle WeightTotal kg (lb)1850 (4079)uuuFuel Tank Capacityl (U.S. gal., Imp. gal.)70 (18.5, 15.4)uuuLuggage Compartment Capacity m3 (cu. ft.)0.399 (14.1)uuuMax. Speed km/h (mph)180 (112)uuuMax. Cruising Speed km/h (mph)ÐÐÐÐ
Acceleration0 to 100 km/h sec.ÐÐÐÐ
ceAcceleration0 to 400 m sec.ÐÐÐÐ
mance1st Gear km/h (mph)52 (32)69 (43)uu
rform
a
Max Permissible Speed2nd Gear km/h (mph)93 (58)125 (78)uuPerfoMax. Permissible Speed3rd Gear km/h (mph)147 (91)ÐÐÐP4the Gear km/h (mph)ÐÐÐÐTurning DiameterWall to Wall m (ft.)11.5 (37.7)uuuTurning Diameter(Outside Front)Curb to Curb m (ft.)11.0 (36.1)uuuEngine Type5S±FEuuuValve Mechanism16±Valve, DOHCuuuBore x Stroke mm (in.)87.0x91.0(3.43x3.58)uuu
eDisplacement cm3 (cu. in..)2164 (132.0)uuu
ngineCompression Ratio9.5 : 1uuuEngCarburetor TypeSFIuuuResearch Octane No. RON91uuuMax. Output (SAE±NET) kW/rpm (HP @ rpm)99/5200(133@5200),97/5200(130@5200)*3uuuMax. Torque (SAE±NET) N.m/rpm (lb±ft @ rpm)199/4400(147@4400,197/4400(145@44003uuu
alBattery Capacity (5HR) Voltage & Amp. hr.12±52, 12±48*4uuu
ginectric a lGenerator Output Watts960uuuEnginElectrStarter Output kW1.4uuuClutch TypeDry, Single PlateÐÐÐTransmission TypeS51A140Euu
uIn First3.5382.810uuIn Second1.9601.549uu
Transmission Gear RatioIn Third1.2501.000uuTransmission Gear RatioIn Fourth0.9450.706uuIn Fifth0.731ÐÐÐIn Reverse3.1532.296uuCounter Gear RatioÐ0.945uuDifferential Gear Ratio (Final)3.944uuu
ssisBrake TypeFrontVentilated Discuuu
ChassiBrake TypeRearL.T. DrumuuuChParking Brake TypeDrumuuuBrake Booster Type and Style in.Tandem 8º + 9ºuTandem 8.5º + 8.5º*1,
8º
+
9º*2uProportioning Valve TypeDual±P Valveuuu
Suspension TypeFrontMacPherson StrutuuuSuspension TypeRearMacPherson Strutuuu
Stabilizer BarFrontSTDuuuStabilizer BarRearSTDuuuSteering Gear TypeRack & PinionuuuSteering Gear Ratio (Overall)17.4 : 1uuuPower Steering TypeIntegral Typeuuu
* : Unladen Vehicle, *1 : Produced by TCM, *2 : Produced by TMM, *3 : California Specification Model, *4
: Without Cold Area Specification Model

122APPENDIX
Item AreaCanadaBody Type4±Door SedanVehicle GradeLECELEModel CodeSXV20L±CEPNKKMCV20L±CEPDKKMCV20L±CEPNKKLength mm (in.)4785 (188.4)uu
OverallWidth mm (in.)1780 (70.1)uuOverallHeight* mm (in.)1415 (55.7)1420 (55.9)uWheel Base mm (in.)2670 (105.1)uu
TreadFront mm (in.)1545 (60.8)uuTreadRear mm (in.)1520 (59.8)uu
Effective Head RoomFront mm (in.)1105 (43.5)uuEffective Head RoomRear mm (in.)902 (35.5)uu
sEffective Leg RoomFront mm (in.)980 (38.6)uu
ghtsEffective Leg RoomRear mm (in.)940 (37.0)uu
Weig
h
Shoulder RoomFront mm (in.)1427 (56.2)uu
icle WShoulder RoomRear mm (in.)1425 (56.1)uu
VehicOverhangFront mm (in.)970 (38.2)uu
s & VeOverhangRear mm (in.)1140 (44.9)uu
sions
&Min.. Running Ground Clearance mm (in.)145 (5.7)148 (5.8)u
mensioAngle of Approach degrees175uu
DimeAngle of Departure degrees175uu
ajor DFront kg (lb)865 (1907)890 (1962)920 (2028)MajoCurb WeightRear kg (lb)535 (1179)540 (1191)uMCurb WeightTotal kg (lb)1400 (3086)1430 (3153)1460 (3219)Front kg (lb)980 (2161)1035 (2282)uGross Vehicle WeightRear kg (lb)870 (1918)875 (1929)uGross Vehicle WeightTotal kg (lb)1850 (4079)1910 (4211)uFuel Tank Capacityl (U.S. gal., Imp. gal.)70 (18.5, 15.4)uuLuggage Compartment Capacity m3 (cu. ft.)0.399 (14.1)uuMax. Speed km/h (mph)180 (112)210 (130)uMax. Cruising Speed km/h (mph)ÐÐu
Acceleration0 to 100 km/h sec.ÐÐÐ
ceAcceleration0 to 400 m sec.ÐÐÐ
mance1st Gear km/h (mph)69 (43)70 (43)u
rform
a
Max Permissible Speed2nd Gear km/h (mph)125 (78)127 (79)uPerfoMax. Permissible Speed3rd Gear km/h (mph)ÐÐÐP4th Gear km/h (mph)ÐÐÐTurning DiameterWall to Wall m (ft.)11.5 (37.7)11.9 (39.0)uTurning Diameter(Outside Front)Curb to Curb m (ft.)11.0 (36.1)11.4 (37.4)uEngine Type5S±FE1MZ±FEuValve Mechanism16±Valve, DOHC24±Valve, DOHCuBore x Stroke mm (in.)87.0x91.0 (3.43x3.58)87.5x83.0 (3.44x3.27)u
eDisplacement cm3 (cu. in..)2164 (132.0)2995 (182.7)u
ngineCompression Ratio9.5 : 110.5:1uEngCarburetor TypeSFIuuResearch Octane No. RON9191 or higheruMax. Output (SAE±NET) kW/rpm (HP @ rpm)99/5200(133@5200)145/5200 (194@5200)uMax. Torque (SAE±NET) N.m/rpm (lb±ft @ rpm)199/4400(147@4400)283/4400 (209@4400)u
alBattery Capacity (5HR) Voltage & Amp. hr.12±52uu
ginectric a lGenerator Output Watts960uuEnginElectrStarter Output kW1.4uuClutch TypeÐÐÐTransmission TypeA140EA541EuIn First2.810uuIn Second1.549uu
Transmission Gear RatioIn Third1.000uuTransmission Gear RatioIn Fourth0.7060.375uIn FifthÐÐÐIn Reverse2.296uuCounter Gear Ratio0.945uuDifferential Gear Ratio (Final)3.9443.933u
ssisBrake TypeFrontVentilated Discuu
ChassiBrake TypeRearL.T. DrumSolid DiscuChParking Brake TypeDrumuuBrake Booster Type and Style in.Tandem 8º + 9ºuuProportioning Valve TypeDual±P Valveuu
Suspension TypeFrontMacPherson StrutuuSuspension TypeRearMacPherson Strutuu
Stabilizer BarFrontSTDuuStabilizer BarRearSTDuuSteering Gear TypeRack & PinionuuSteering Gear Ratio (Overall)17.4 : 1uuPower Steering TypeIntegral Typeuu
* : Unladen Vehicle

High Strength Sheet Steel
HIGH±STRENGTH STEEL (HSS) PARTS
Generally, High±Strength Steel (HSS) is that which has an intensity value of at 35 kgf/mm2
(343 MPa), and
distinguished from mild steel.
The handling of HSS is the same as for mild steel, but the following should be observed.
1. Panel Hammering: Because HSS is thinner than mild steel, care should be taken to avoid warping
during hammering operations.
2. Removing Spot Welds: Because HSS is tougher than mild steel, damage will occur more easily to a
regular drill. Therefore, an HSS Spot Cutter is recommended.
Also, use a high±torque drill at low speed, and supply grinding oil to the drill during use.
3. Panel Welding: Panel welding procedures for HSS are exactly the same as for mild steel. Plug weld-
ing should be done with MIG (Metal Inert Gas) welder. Do not gas weld or braze panels at areas other
than specified.
BODY PANEL CONSTRUCTIONCN-2

CAMRY ± NEW FEATURES7
1MZ-FE ENGINE
1. Description
On the California specification automatic transaxle model, the 1MZ-FE engine has adopted the air-fuel ratio
sensor and the WU-TWC (Warm Up-Three-Way Catalytic Converter) to reduce exhaust emissions.
2. Engine Specifications
1MZ-FE Engine
Item'98 Model'97 Model
No. of Cyls. & Arrangement6-Cylinder, V Type
Valve Mechanism24-Valve, DOHC,
Belt & Gear Drive
Combustion ChamberPentroof Type
ManifoldsCross-Flow
Fuel SystemSFI
Displacement cm3 (cu. in.)2995 (182.7)
Bore x Stroke mm (in.)87.5 x 83.0 (3.44 x 3.27)
Compression Ratio10.5 : 1
Max. Output [SAE-NET]
145 kW@5200 rpm
(194HP@5200 rpm),
143 kW@5200 rpm
(192 HP@5200 rpm)*
145 kW@5200 rpm
(194HP@5200 rpm)
Max. Torque [SAE-NET]
283 N.m@4400 rpm
(209 ft
.lbf@4400 rpm),
281 N
.m@4400 rpm
(207 ft
.lbf@4400 rpm)*
283 N.m@4400 rpm
(209 ft
.lbf@4400 rpm)
IntakeOpen4 BTDC
Valve
IntakeClose44 ABDCValve
Timing
ExhaustOpen46 BBDCg
ExhaustClose2 AT D C
Fuel Octane Number RON91 or Higher
Oil GradeAPI SH EC-II,
SJ EC or ILSACAPI SH EC II or ILSAC
Premium unleaded gasoline (96RON) is used for the above specifications.
*: California Specification Automatic Transaxle Model.