Lexus ES300 (1997 year). Manual — part 531
S04530
Voltmeter
Disconnect
E2
VC
SF06R–01
B01078
Pressure
Vacuum
E2 (–)
PTNK (+)
SF–58
–
SFI
VAPOR PRESSURE SENSOR
909
1997 LEXUS ES300 (RM511U)
VAPOR PRESSURE SENSOR
INSPECTION
1.
INSPECT POWER SOURCE VOLTAGE OF
VAPOR PRESSURE SENSOR
(a)
Disconnect the vapor pressure sensor connector.
(b)
Turn the ignition switch ON.
(c)
Using a voltmeter, measure the voltage between connec-
tor terminals VC and E2 of the wiring harness side.
Voltage: 4.5 – 5.5 V
(d)
Turn the ignition switch to LOCK.
(e)
Reconnect the vapor pressure sensor connector.
2.
INSPECT POWER OUTPUT OF VAPOR PRESSURE
SENSOR
(a)
Turn the ignition switch ON.
(b)
Disconnect the vacuum hose from the vapor pressure
sensor.
(c)
Connect a voltmeter to terminals PTNK and E2 of the
ECM, and measure the output voltage under the following
conditions:
Apply vacuum (2.0 kPa, 15 mmHg, 0.59 in.Hg) to
the vapor pressure sensor.
Voltage: 1.3 – 2.1 V
Release the vacuum from the vapor pressure sen-
sor.
Voltage: 3.0 – 3.6 V
Apply pressure (1.5 kPa, 15 gf/cm
2
, 0.22 psi) to the
vapor pressure sensor.
Voltage: 4.2 – 4.8 V
(d)
Reconnect the vacuum hose to the vapor pressure sen-
sor.
S05372
PS Pressure Tube
VSV Connector for ASIC
Engine Coolant
Reservoir Hose
Fuel Inlet Pipe
Water Bypass Hose
No.2 EGR Pipe
Air Intake Chamber Stay
V–Bank Cover
Gasket
Throttle Position
Sensor Connector
Gasket
Accelerator Cable
Brake Booster
Vacuum Hose
EGR Valve Position
Sensor Connector
Throttle Cable
IAC Valve
Connector
Air Cleaner
Hose
VSV Connector
for EGR
Engine Wire
No.1 Engine
Hanger
VSV Connector for
EVAP
Ground Cable
Ground Cable
Ground Strap
DLC1
PCV Hose
Air Intake Chamber
Assembly
Gasket
Knock Sensor
High–Tension Cord
EGR Gas Temperature
Sensor Connector
EVAP Hose
Water Bypass Hose
Air Assist Hose
Vacuum
Hose
Heater Hose
Intake Manifold Assembly
Injector Connector
N·m (kgf·cm, ft·lbf)
Set
Connector
Gasket
ECT Sender
Gauge Connector
ECT Sensor
Connector
Ground Strap
Connector
Water Outlet
Gasket
Knock Sensor
: Specified torque
Non–reusable part
Upper Radiator
Hose
Engine
Wire Band
39 (400, 29)
19.50(200, 14)
39 (400, 19)
12 (120, 9)
43 (440, 32)
15 (150, 11)
15 (150, 11)
SF06S–04
–
SFI
KNOCK SENSOR
SF–59
910
1997 LEXUS ES300 (RM511U)
KNOCK SENSOR
COMPONENTS
SF06T–01
P20115
SST
Knock Sensor 1
Knock Sensor 2
P01630
Ohmmeter
SF–60
–
SFI
KNOCK SENSOR
911
1997 LEXUS ES300 (RM511U)
INSPECTION
1.
REMOVE AIR CLEANER HOSE
2.
REMOVE RH ENGINE MOUNTING STAY
3.
REMOVE INTAKE MANIFOLD ASSEMBLY AND
WATER OUTLET (See page
4.
REMOVE KNOCK SENSORS
(a)
Disconnect the knock sensor connector.
(b)
Using SST, remove the knock sensor.
SST
09817–16011
5.
INSPECT KNOCK SENSORS
Using an ohmmeter, check that there is no continuity between
the terminal and body.
If there is continuity, replace the sensor.
6.
REINSTALL KNOCK SENSORS
(a)
Using SST, install the knock sensor.
SST
09817–16011
Torque: 39 N·m (400 kgf·cm, 29 ft·lbf)
(b)
Connect the knock sensor connector.
7.
REINSTALL WATER OUTLET AND INTAKE
MANIFOLD ASSEMBLY (See page
8.
REINSTALL RH ENGINE MOUNTING STAY
9.
REINSTALL AIR CLEANER HOSE
S05661
Gasket
Throttle Body
Throttle Position
Sensor Connector
IAC Valve Connector
Water Bypass Hose
Air Assist Hose
Water Bypass Hose
EGR Gas Temperature
Sensor Connector
Air Cleaner Hose
EGR Gas Temperature
Sensor Bracket
EGR Gas Temperature Sensor
Accelerator Cable
Throttle Cable
N·m (kgf·cm, ft·lbf)
: Specified torque
Non–reusable part
19.5 (200, 14)
SF06U–02
–
SFI
EXHAUST GAS RECIRCULATION (EGR) GAS
TEMPERATURE SENSOR
SF–61
912
1997 LEXUS ES300 (RM511U)
EXHAUST GAS RECIRCULATION (EGR) GAS
TEMPERATURE SENSOR
COMPONENTS
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