sensor LEXUS LS430 2003 Factory Repair Manual

Fig. 190: Removing Damper Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
23.REMOVE TIMING BELT NO.1 COVER
a. Remove the 4 bolts and cover.
24.REMOVE CRANKSHAFT POSITION SENSOR PLATE
25.REMOVE TIMING BELT
a. If planning to reuse the belt, check the installation marks on the belt.
1. Check that there are 3 installation marks on the belt by turning the crankshaft as shown in the
illustration.
If the installation marks have disappeared, place a new installation mark on the belt before
removing each part.

Fig. 204: Checking Pulley Aligning Timing Marks
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
32.INSTALL CRANKSHAFT POSITION SENSOR PLATE
a. Install the crankshaft position sensor plate as shown in the illustration.

Fig. 205: Installing Crankshaft Position Sensor Plate
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
33.INSTALL TIMING BELT NO.1 COVER
a. Install the timing belt cover with the 4 bolts.
Torque: 7.5 N.m (76.5 kgf.cm, 66 in..lbf)
34.INSTALL CRANKSHAFT DAMPER SUB-ASSY
a. Using SST and a hammer, tap in the damper.
SST 09223-4601 1

37.INSTALL TIMING BELT COVER SUB-ASSY NO.2
a. Fit the cover No. 2, matching the claws and pin with each part.
b. Install the timing belt cover with the 2 bolts.
Torque: 16 N.m (163 kgf.cm, 12 ft.lbf)
HINT:
Use bolts that are 106 mm (4.17 in.) in length.
Fig. 209: Installing Timing Belt Cover With Bolts

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
38.INSTALL TIMING BELT COVER SUB-ASSY NO.3 LH
a. Install the gasket to the cover.
b. Run the camshaft position sensor wire through the cover hole.
c. Install the cover with the 4 bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
d. Install the wire grommet to the cover.
e. Install the sensor connector to the sensor holder.

f. Connect the sensor connector.
g. Install the sensor wire to the wire clamp on the cover.
h. Install the engine wire to the 2 wire clamps on the cover.
Fig. 210: Installing Timing Belt Cover Sub
-Assy No.3 LH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
i. Connect the 2 water bypass hoses, as shown in the illustration.
j. Install the No. 3 water bypass pipe to the cover with the cap nut.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)

Fig. 274: Removing Cylinder Head Sub-Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
13.REMOVE WATER BYPASS JOINT FR
a. Disconnect the ECT sensor connector.
b. Remove the 4 nuts, water bypass joint and 2 gaskets.
14.REMOVE W/CATALYST CONVERTER ASSY

Fig. 281: Installing Water By-Pass Joint FR
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
i. Install the gasket to the cylinder head cover.
j. Install the seal washer to the bolt.
k. Install the cylinder head cover with the 9 bolts. Uniformly tighten the bolts in several passes. Install
the 2 cylinder head covers.
Torque: 6.0 N.m (61 kgf.cm, 53 in..lbf)
l. Install the wire clamp bracket on the engine wire to the camshaft bearing cap.
19.INSTALL W/CATALYST CONVERTER ASSY
20.INSTALL WATER BYPASS JOINT FR
a. Install 2 new gaskets and the water bypass joint with the 4 nuts. Alternately tighten the nuts.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
b. Connect the ECT sensor connector.

Fig. 286: Removing Upper And Lower Intake Manifold Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
10.REMOVE INTAKE MANIFOLD ASSY
a. Remove the 6 bolts, 4 nuts, upper and lower intake manifold assembly and 2 gaskets.
11.REMOVE WATER BYPASS JOINT RR
a. Disconnect the heater inlet hose from the water bypass joint.
b. Remove the 4 nuts, water bypass joint and 2 gaskets.
Fig. 287: Disconnecting Heater Inlet Hose From Water By
-Pass Joint
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
12.REMOVE WATER INLET HOUSING
a. Remove the 2 bolts and inlet housing.
13.REMOVE WATER BYPASS JOINT FR
a. Disconnect the ECT sensor connector.
b. Remove the 4 nuts, water bypass joint and 2 gaskets.

1.REMOVE FRONT FLOOR BRACE CENTER
a. Remove the 4 bolts and floor brace.
2.Bank 1, 2 sensor 2:
REMOVE HEATED OXYGEN SENSOR
a. Remove the 2 sensors.
3.REMOVE EXHAUST PIPE ASSY FRONT
a. Loosen the clamp.
b. Remove the 4 bolts, 4 nuts, pipe and 2 gaskets.
4.REMOVE EXHAUST PIPE ASSY CENTER
a. Loosen the 2 clamps.
b. Remove the pipe.
5.REMOVE EXHAUST PIPE ASSY TAIL (LH)
a. Remove the pipe from the 3 rings.
6.REMOVE EXHAUST PIPE ASSY TAIL (RH)
a. Remove the pipe from the 3 rings.
7.INSTALL EXHAUST PIPE ASSY FRONT
a. Install the 2 new gaskets to the pipe.
b. Install the pipe to the TWC with the 4 bolts and 4 nuts.
Torque: 44 N.m (450 kgf.cm, 32 ft.lbf)
8.Bank 1, 2 sensor 2:
INSTALL HEATED OXYGEN SENSOR
a. Install the 2 sensors.
Torque: 44 N.m (450 kgf.cm, 32 ft.lbf)
HINT:
Before installing the sensor, twist the sensor wire counterclockwise 3 and 1/2 turns.
After installing the sensor, check that the sensor wire is not twisted. If it is twisted, remove the
sensor and reinstall it.
9.INSTALL EXHAUST PIPE ASSY CENTER
a. Install the pipe.
b. Tighten the clamp.
Standard dimension (A): 13 to 15 mm (0.51 to 0.59 in.)

HINT:
Use the same procedure described for the LH side.
3.REMOVE RADIATOR SIDE DEFLECTOR LH
a. Remove the 3 clips and deflector.
4.REMOVE RADIATOR SIDE DEFLECTOR RH
a. Remove the 3 clips and deflector.
5.REMOVE FRONT BUMPER COVER
a. Remove the 4 nuts.
Fig. 4: Removing Front Bumper Cover Nuts

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Remove the 3 clips and 7 screws.
c. Using a screwdriver, disengage the 2 claws and remove the bumper cover.
d. Disconnect the 2 fog lamp connectors.
e. w/ Clearance sonar system:
Disconnect the 6 sensor connectors.