2000 TOYOTA CAMRY Service Repair Manual

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Page 513 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 34ENGINEÐ5S±FE ENGINE
2. Exhaust Manifold
A stainless steel exhaust manifold is used for improving the engine performance and for reducing weight.
On the California specification model, the stainl

Page 514 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 35 ENGINEÐ5S±FE ENGINE
IGNITION SYSTEM
1. General
A DIS (Direct Ignition System) has been adopted in the new 5S±FE engine. The DIS in new 5S±FE engine is a
2±cylinder simultaneous ignition sys

Page 515 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 36ENGINEÐ5S±FE ENGINE
3. Spark Plugs
Twin grouond electrode platinum tipped spar plugs have been adopted to rreflect the change of the DIS system.
Recommended Spark Plug Types
NIPPONDENSO
PK20TR11

Page 516 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 37 ENGINEÐ5S±FE ENGINE
ENGINE CONTROL SYSTEM
1. General
The engine control system of the new 5S±FE engine is basically the same in construction and operation as that of the
previous 5S±FE engine

37 ENGINEÐ5S±FE ENGINE
ENGINE CONTROL SYSTEM
1. General
The engine control system of the new 5S±FE engine is basically the same in construction and operation as that of the
previous 5S±FE engine, except fo rthe changed listed bleow.
The exhaust emissions has been reduced through the adoption of the sequential multiport fuel injection system for
engine starting and the air±fuel ratio sensor*
2
The function of an air conditioning amplifier has been internally added to the ECM.
The engine control system of the new 5S±FE engine and previous 5S±FE engine and previous 5S±FE engine are
compared below.
System
OutlineNewPrevious
SFI
(SequentialA D±type SFI system is used, which indirectly detects
intake air volume by manifold absolute pressure.(q
Multiport Fuel
Injection)The fuel injection system is a sequential multiport fuel
injection system.
ESA
(Electronic SparkIgnition Timing is determined by the ECM based on
signals from various sensors. The ECM corrects ignition
timing in response to engine knocking.

(Electronic Spark
Advance)Torque control correction during gear shifting has been
used to minimize the shift shock.*1*1
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.
Fuel Pump
ControlFuel pump operation is controlled by signal from the
ECM.
Oxygen Sensor
(Air Fuel Ratio
Sensor*
2)
Heater Control
Maintains the temperature of the oxygen sensor (or air
fuel ratio sensor*2) at an approppiate level to increase
accuracy of detection of the oxygen concentration in the
exhaust gas.Ð
EGR Cut±Off
ControlCuts off EGR according to the engine condition to
maintain drivability of the vehicle and durability of
EGR components.

Evaporative
Emission ControlThe ECM controls the purge flow of evaporative emis-
sions (HC) in the charcoal canister in accordance with
engine conditions.
*1*1
Air Conditioning
Cut±Off ControlBy turning the air conditioning compressor ON or
OFF in accordance with the engine condition,
drivability is maintained
*3
Diagnosis
When the ECM detects a malfunction, the ECM diagnoses
and memorized the failed section.
DiagnosisThe diagnosis system includes a function that detects a
malfunction in the evaporative control system.*1*1
Fail SafeWhen 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 Models., *2: Only for California Specification Models,
*
3: The air conditioning magnet scutch controled by the ECM.

Page 517 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 38ENGINEÐ5S±FE ENGINE
2. Construction
The configuration of the engine control system in the 5S±FE engine in the new CAmry is as shown in the following
chart. Shaded protions
differ from the 5S±

Page 518 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 39 ENGINEÐ5S±FE ENGINE
3. Engine Control System Diagram
For Manual Transaxle Models
*1 : Except for California Specification Model
*
2 : Only for California Specification Model

Page 519 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 40ENGINEÐ5S±FE ENGINE
For Automatic Transaxle Models
*1 : Except for California Specification Model
*2 : Only for California Specification Model

Page 520 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 41 ENGINEÐ5S±FE ENGINE
4. Layout of Components

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