sensor LEXUS ES300 2005 Owners Manual
Page 600 of 969
110XX-02
A79487
(b)
(c)
A91017
Nylon Tube Fuel Tube Joint
O-ring
Tube Joint Clip Fuel Suction Plate
A79488
Tube Joint Clip
A79489
(b)
(b)
(b)(b)(b)
(b)
(b)
(b) 11-20
- FUELFUEL SUCTION W/ PUMP & GAUGE TUBE
ASSY (3MZ-FE)
2048 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
Removal & Installation and Disassembly & Reassembly
1. DISCHARGE FUEL SYSTEM PRESSURE (See page 11-1)
2. DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
3. REMOVE REAR SEAT CUSHION ASSY (See page 72-39)
4. REMOVE REAR FLOOR SERVICE HOLE COVER
(a) Remove the rear floor service hole cover.
(b) Disconnect the vapor pressure sensor connector.
(c) Disconnect the fuel pump connector.
5. REMOVE FUEL SUCTION W/ PUMP & GAUGE TUBE
ASSY
(a) Remove the tube joint clip, then pull out the fuel pump
tube.
NOTICE:
Check around the connector for dirt or mud before
this operation. Remove the dirt if necessary.
Be careful of mud because the fuel tube joint has an
O-ring which seals the pipe and connector that can
be contaminated.
Do not use any tools in this operation.
Do not bend or twist the nylon tube. Protect the con-
nector by covering it with a vinyl or plastic bag.
When the pipe and connector are stuck, push and pull
the connector to release. Pull the connector carefully.
(b) Remove the 8 bolts, then remove the fuel tank vent tube
set plate.
Page 601 of 969
A79490
A79491
Cover
Tube Joint Clip
A77832Tape
A79492
A79494
Tape
(a)
Slide
- FUELFUEL SUCTION W/ PUMP & GAUGE TUBE
ASSY (3MZ-FE)11-21
2049 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(c) Remove the fuel suction tube w/ pump & gauge from the
fuel tank.
NOTICE:
Do not damage the fuel pump filter.
Do not bend the arm of the fuel sender gauge.
(d) Remove the gasket from the fuel suction tube w/ pump &
gauge.
6. REMOVE VAPOR PRESSURE SENSOR ASSY
(a) Remove the cover.
(b) Remove the tube joint clip, then pull out the vapor pres-
sure sensor.
7. REMOVE FUEL SUCTION SUPPORT NO.2
(a) Using a screwdriver with the tip wrapped in tape, unfasten
the 5 claws. Then remove the fuel suction support No. 2.
NOTICE:
Do not damage the fuel suction support No. 2.
8. REMOVE FUEL PUMP CUSHION RUBBER
9. REMOVE FUEL SENDER GAUGE ASSY
(a) Disconnect the fuel sender gauge connector.
(b) Using a screwdriver with the tip wrapped in tape, unfasten
the clamp to release the fuel sender gauge. Then slide the
fuel sender gauge to remove it from the fuel pump.
Page 603 of 969
A65038
New O-ring
A65040
O-ring
A86272
Cover
Tube Joint Clip
- FUELFUEL SUCTION W/ PUMP & GAUGE TUBE
ASSY (3MZ-FE)11-23
2051 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
15. INSTALL FUEL PRESSURE REGULATOR ASSY
(a) Apply a light coat of spindle oil or gasoline to a new O-
ring, then install it to the fuel pressure regulator.
(b) Push in the fuel pressure regulator to the fuel tank fuel fil-
ter.
16. INSTALL FUEL PUMP FILTER
(a) Install the fuel pump filter with a new clip.
17. INSTALL FUEL PUMP
(a) Apply a light coat of gasoline or spindle oil to the O-ring
on the fuel pump.
(b) Push in the fuel pump to the fuel tank fuel filter.
18. INSTALL FUEL PUMP HARNESS
19. INSTALL FUEL SUCTION PLATE SUB-ASSY
20. INSTALL FUEL SENDER GAUGE ASSY
21. INSTALL FUEL PUMP CUSHION RUBBER
22. INSTALL FUEL SUCTION SUPPORT NO.2
23. INSTALL VAPOR PRESSURE SENSOR ASSY
(a) Install the vapor pressure sensor with the tube joint clip.
NOTICE:
Check the connected part for scratch or foreign ob-
jects.
Check that the vapor pressure sensor is inserted se-
curely.
Check that the tube joint clip is on the collar of the va-
por pressure sensor.
After installing the tube joint clip, check that the vapor
pressure sensor has not been pulled off.
(b) Install the cover.
Page 604 of 969
A79489Mark
A81595
Tube Joint ClipCollar
A79487
New Butyl Tape
11-24- FUELFUEL SUCTION W/ PUMP & GAUGE TUBE
ASSY (3MZ-FE)
2052 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
24. INSTALL FUEL SUCTION W/ PUMP & GAUGE TUBE
ASSY
(a) Install a new gasket to the fuel suction tube w/ pump &
gauge.
(b) Install the fuel suction tube w/ pump & gauge to the fuel
tank.
NOTICE:
Do not damage the fuel pump filter.
Do not bend the arm of the fuel sender gauge.
(c) Align the mark of the fuel tank vent tube set plate with the
fuel suction tube w/ pump & gauge.
(d) Install the fuel tank bent tube set plate with the 8 bolts.
Torque: 5.9 NVm (60 kgfVcm, 52 in.Vlbf)
(e) Install the fuel pump tube with the tube joint clip.
NOTICE:
Check the connected part for scratch or foreign ob-
jects.
Check that the fuel tube joint is inserted securely.
Check that the tube joint clip is on the collar of the fuel
tube joint.
After installing the tube joint clip, check that the fuel
tube joint has not been pulled off.
25. CONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
Torque: 5.4 NVm (55 kgfVcm, 48 in.Vlbf)
26. CHECK FOR FUEL LEAKS (See page 11-5)
27. INSTALL REAR FLOOR SERVICE HOLE COVER
(a) Connect the fuel pump connector.
(b) Connect the vapor pressure sensor connector.
(c) Using new butyl tape, install the rear floor service hole
cover.
28. INSTALL REAR SEAT CUSHION ASSY
29. SYSTEM INITIALIZATION (See page 19-15)
Page 605 of 969
110XY-01
A79485 A79485 Non-reusable part
N´m (kgf´cm, ft´lbf) : Specified torque
5.9 (60, 52 in.Vlbf)
x8Fuel Pump Tube Sub-assy
Tube Joint Clip Fuel Tank Bent Tube Set Plate
Fuel Suction
w/ Pump & Gauge Tube Assy
Fuel Suction Tube Set Gasket Vapor Pressure Sensor Connector Fuel Pump ConnectorRear Floor Service Hole Cover Rear Seat Cushion Assy
- FUELFUEL TANK ASSY (3MZ-FE)
11-25
2053 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
FUEL TANK ASSY (3MZ-FE)
COMPONENTS
Page 614 of 969
120C0-01
A86341
Ventilation Valve Sub-assy
EVAP Service Port
Heated Oxygen Sensor
(Bank 1 Sensor 2)
Air Fuel Ratio Sensor
(Bank 1 Sensor 1) Vacuum Surge Tank
VSV for EVAP
Heated Oxygen Sensor
(Bank 2 Sensor 2)
Air Fuel Ratio Sensor
(Bank 2 Sensor 1)
Fuel Tank Cap Assy
Charcoal Canister Filter
Sub-assy Charcoal Canister Assy
Vapor Pressure Sensor Assy
VSV for CCV
- EMISSION CONTROLEMISSION CONTROL SYSTEM (3MZ-FE)
12-1
2062 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
EMISSION CONTROL SYSTEM (3MZ-FE)
LOCATION
Page 615 of 969
A86342
EVAP
Service Port Vacuum
Surge TankVSV
for EVAP
Fuel Tank Cap
Assy
Vapor Pressure Sensor
Assy
Fuel Tank Assy
Charcoal Canister Assy
VSV for CCVCharcoal Canister Filter
Sub-assyAir Fuel Ratio Sensor
(Bank 1 Sensor 1)
Heated Oxygen Sensor
(Bank 1 Sensor 2)
Heated Oxygen Sensor
(Bank 2 Sensor 2)
Air Fuel Ratio Sensor
(Bank 2 Sensor 1) Air Cleaner Assy
Ventilation Valve Assy
Vent Line
Air Inlet Line Purge Line
12-2
- EMISSION CONTROLEMISSION CONTROL SYSTEM (3MZ-FE)
2063 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
Page 616 of 969
120C1-02
G37992
Voltmeter E9 E8
A86347DLC3
Hand-held Tester
A86385
Lean
14.7 3.3 V
RichAir
Fuel
Ratio
Time Keep the engine speed
- EMISSION CONTROLEMISSION CONTROL SYSTEM (3MZ-FE)
12-3
2064 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
ON-VEHICLE INSPECTION
1. INSPECT AIR FUEL RATIO COMPENSATION SYSTEM
(a) Inspect the voltage.
(1) Turn the ignition switch ON.
(2) Using a voltmeter, measure the voltage between
the terminals of the ECM.
Standard:
Tester ConnectionSpecified Condition
A1A+ (E9-22) - E1 (E8-1)3.3 V
A1A- (E9-30) - E1 (E8-1)3.0 V
A2A+ (E9-23) - E1 (E8-1)3.3 V
A2A- (E9-31) - E1 (E8-1)3.0 V
CAUTION:
Connect the test leads from the back side of the ECM con-
nector to the terminals.
HINT:
The voltage between the terminals of the ECM is constant re-
gardless of the voltage output from the air fuel ratio sensor (A/F
sensor).
(b) Check the operation.
(1) Connect the hand-held tester to the DLC3.
(2) Enter ºDIAGNOSIS/ENHANCED OBD II/DATA
LISTº, then select ºAFS B1 S1º and ºAFS B2 S1º to
display the monitor.
(3) Warm up the A/F sensor with the engine speed at
2,500 rpm for approximately 2 minutes.
(4) Keep the engine speed at 2,500 rpm, then confirm
that the waveform of ºAFS B1 S1º and ºAFS B2 S1º
are similar as shown in the illustration.
HINT:
The waveform in the illustration is a sample.
Only the hand-held tester displays the waveform of the
A/F sensor.
(c) Confirm that the display of ºDATA LISTº - ºO2S B1 S2º
and ºO2S B2 S2º fluctuates up and down between 0 V
and 1 V with the engine speed at 2,500 rpm.
Page 621 of 969
A86352
Air
A86344
VoltmeterE10 12-8
- EMISSION CONTROLEMISSION CONTROL SYSTEM (3MZ-FE)
2069 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(8) Remove the vinyl or plastic bag from the fuel tank
to filler pipe port, then check that the pressure
drops.
If the pressure does not drop, replace the fuel tank.
(9) Drain fuel from the fuel tank.
(10) Reinstall the fuel tank vent hose to the fuel tank (see
page 11-28).
(11) Reinstall the fuel tank (see page 11-28).
7. CHECK AIR INLET LINE
(a) Disconnect the fuel tank vent hose (see page 12-18).
(b) Check that there is ventilation in fuel tank vent hose.
If necessary, replace the charcoal canister filter.
(c) Reconnect the fuel tank vent hose (see page 12-18).
8. INSPECT VAPOR PRESSURE SENSOR
(a) Inspect the voltage (power source).
(1) Turn the ignition switch ON.
(2) Using a voltmeter, measure the voltage between
the terminals of the ECM.
Voltage:
Tester ConnectionSpecified Condition
VC (E10-18) - E2 (E10-28)4.5 to 5.5 V
CAUTION:
Connect the test leads from the back side of the ECM con-
nector to the terminals.
(3) Turn the ignition switch OFF.
Page 627 of 969
A86293Battery Air
E
F
A86294
Ohmmeter
A86295
Ohmmeter
Bank 1 Sensor 2 Bank 2 Sensor 2 12-14
- EMISSION CONTROLEMISSION CONTROL SYSTEM (3MZ-FE)
2075 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(2) Apply battery voltage across the terminals.
(3) Check that air flows from port E to F.
If the operation is not as specified, replace the vacuum switch-
ing valve No. 1.
5. INSPECT AIR FUEL RATIO SENSOR
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 (HT) - 2 (+B)1.8 to 3.4 W at 20C (68F)
If the resistance is not as specified, replace the air fuel ratio sen-
sor.
(b) Check the continuity.
(1) Using an ohmmeter, check that there is no continu-
ity between terminals 2 (+B) and 4 (AF-).
If there is continuity, replace the air fuel ratio sensor.
6. INSPECT HEATED OXYGEN SENSOR
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 (HT) - 2 (+B)11 to 16 W at 20C (68F)
If the resistance is not as specified, replace the heated oxygen
sensor.
(b) Check the continuity.
(1) Using an ohmmeter, check that there is no continu-
ity between terminals 1 (HT) and 4 (E).
If there is continuity, replace the heated oxygen sensor.