2003 LEXUS LS430 Intake manifold

g. Disconnect the VSV connector for IAC Valve.
Fig. 21: Disconnecting VSV Connector For IAC Valve

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h. Remove the bolt and V-bank cover bracket No. 1.
i. Remove the bolt and V-bank cover bracket No. 4.
j. Remove the 4 bolts, and disconnect the engine wire protector (LH side) from upper intake manifold
and camshaft bearing cap.

Fig. 22: Removing Bolts And Disconnecting Engine Wire Protector
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k. Disconnect the 2 wire clamps on the engine wire (RH side) from the brackets on the RH delivery
pipe.
l. Remove the 2 bolts, and disconnect the engine wire protector (rear side) from the rear water bypass
joint and RH cylinder head.
m. Disconnect the 8 injector connectors.
Fig. 23: Identifying Bolts

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n. Remove the 6 bolts, 4 nuts, the upper and lower intake manifolds assembly and 2 gaskets.
8.REMOVE KNOCK SENSOR

Fig. 25: Installing Knock Sensor
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a. Install the 2 knock sensors with the 2 nuts, as shown in the illustration.
Torque: 20 N.m (204 kgf.cm, 15 ft,lbf)
b. Connect the 2 knock sensor connectors.
10.INSTALL INTAKE MANIFOLD ASSY

Fig. 26: Installing Intake Manifold Assy
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a. Place 2 new gaskets on the cylinder heads with the white mark facing outward.
b. Install the upper and lower intake manifolds assembly with the 6 bolts and 4 nuts.

Fig. 27: Installing Upper And Lower Intake Manifolds Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
c. Connect the 8 injector connectors.
d. Install the engine wire protector (rear side) with the 2 bolts.

Fig. 30: Connecting VSV Connector For EVAP
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Torque: 7.5 N.m (76.5 kgf.cm, 66 in..lbf)
k. Install the V-bank cover bracket No. 2 with bolt.
Torque: 7.5 N.m (76.5 kgf.cm, 66 in..lbf)
l. Install the VSV for EVAP to the intake manifold with the bolt.
Torque: 7.5 N.m (76.5 kgf.cm, 66 in..lbf)
m. Connect the EVAP hose to the VSV for EVAP.
n. Connect the VSV connector for EVAP.
11.INSTALL THROTTLE BODY ASSY (See REPLACEMENT
)
12.INSTALL INTAKE AIR CONNECTOR PIPE
13.INSPECT FUEL PUMP OPERATION AND CHECK FOR FUEL LEAKS (See ON
-VEHICLE
INSPECTION )
14.INSTALL V-BANK COVER
Torque: 5.0 N.m (51 kgf.cm, 44 in..lbf)
15.CONNECT BATTERY NEGATIVE TERMINAL

2. Turn the crankshaft damper bolt to gain access to each bolt.
3. Hold the crankshaft damper bolt with a wrench, and remove the 6 bolts.
b. Remove the 10 bolts and ground strap.
c. Remove the transmission together with the torque converter clutch from the engine.
Fig. 39: Removing Flywheel Housing Under Cover

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48.REMOVE DRIVE PLATE & RING GEAR SUB-ASSY
a. Remove the 8 bolts, rear spacer, ring gear and front spacer.
49.INSTALL ENGINE STAND
50.REMOVE THROTTLE BODY ASSY (See REPLACEMENT
)
51.REMOVE INTAKE MANIFOLD ASSY
a. Disconnect the VSV connector for EVAP.
b. Disconnect the EVAP hose from the VSV for EVAP.
c. Remove the bolt, disconnect the VSV for EVAP from the upper intake manifold.
d. Remove the bolt and V-bank cover bracket No. 2.
e. Remove the bolt and V-
bank cover bracket No. 3.

Fig. 40: Removing Intake Manifold Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
f. Disconnect the VSV connector for ACIS.
g. Remove the bolt and V-bank cover bracket No. 1.
h. Remove the bolt and V-
bank cover fastener.