2000 TOYOTA CAMRY Service Repair Manual

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Page 1081 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NEW FEATURES Ð 5S-FNE ENGINE 18
10. Fuel Temperatur and Pressure Sensor for Fuel Gage
A fuel temperature sensor that detects the temperature in the fuel tank is provided on the tank valve assembly.
A

Page 1082 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 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 h

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

Page 1083 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 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

Page 1084 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NF
NEW FEATURES Ð 5S-FNE ENGINE
TE1
BATT +B
BATTERYEFI MAIN RELAYFC
THCNG 1
PCNG 1VCNG 2
SIL
ECM
THCNG 2
PCNG 2VCNG 3
+B1
21
FUEL TEMP. SENSOR for
FUEL TANK
FUEL TEMP. SENSOR for
DELIVERY PIPE
FUEL

Page 1085 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NEW FEATURES Ð 5S-FNE ENGINE 22
3. Engine Control System Diagram
Fuel Tank
167CN1 1
SpeedometerFuel Gage & Warning
MIL
DLC3
Airbag Sensor Assembly
ECM
Fuel Temp.
Sensor
Fuel Shutoff
ValveFuel
Pressu

Page 1086 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NF
NEW FEATURES Ð A140E AUTOMATIC TRANSAXLE AND BRAKES
A140E AUTOMATIC TRANSAXLE
DESCRIPTION
As in the 5S-FE engine model, the A140E automatic transaxle is used on the 5S-FNE engine model.
The gear

Page 1087 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NEW FEATURES Ð BODY 6
BODY
DESCRIPTION
To install the fuel tank in the front area of the luggage compartment, the upper back panel has been
cut.
To prevent reducing the rigidity of the body due to

Page 1088 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NF
NEW FEATURES Ð SRS AIRBAD
Fuel Shutoff Valves
Front Airbag
Sensors
Airbag
Sensor
Assembly
AirbagsSeat Belt
Preten-
sionersFuel Cutoff
Signal
ECM
167CN19
SRS AIRBAG
DESCRIPTION
When the SRS airb

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