Lexus RX300 (MCU15). Service manual — part 415
FI0V6–01
–
ELECTRONIC FUEL INJECTION
AIR FLOW METER
FI–31
LEXUS RX300 (RM785E)
INSTALLATION
Installation is in the reverse order of removal (See page FI–29).
B05129
Must Have
No Clearance
Must Have
Clearance
FI0V7–01
A06100
VTA
E2
VC
FI–32
–
ELECTRONIC FUEL INJECTION
THROTTLE BODY
LEXUS RX300 (RM785E)
THROTTLE BODY
ON–VEHICLE INSPECTION
1.
INSPECT THROTTLE BODY
Check that the throttle linkage moves smoothly.
2.
INSPECT THROTTLE POSITION SENSOR
(a)
Check that there is no clearance between each throttle
stop screw and the throttle lever when applying the nega-
tive pressure (53.3 kPa (400 mmHg)) to the throttle open-
er using the mighty pack.
(b)
Apply vacuum to the throttle opener.
(c)
Disconnect the sensor connector.
(d)
Using an ohmmeter, measure the resistance between
each terminal.
Throttle valve
condition
Between
terminals
Resistance
Fully closed
VTA – E2
0.2 – 6.3 kΩ
Fully open
VTA – E2
2.0 – 10.2 kΩ
–
VC – E2
2.5 – 5.9 kΩ
(e)
Reconnect the sensor connector.
FI0V8–01
B12952
z
Gasket
Throttle Body
Water Bypass Hose
Air Hose
N·m (kgf·cm, ft·lbf)
z
Non–reusable part
19.5 (199, 14.4)
: Specified torque
Air Cleaner Case
Air Cleaner Cap
Air Cleaner Hose
Vacuum Hose
Accelerater Cable
Connector
Surge Tank Stay
19.5 (199, 14.4)
–
ELECTRONIC FUEL INJECTION
THROTTLE BODY
FI–33
LEXUS RX300 (RM785E)
COMPONENTS
B05284
Protector
z
O–Ring
Throttle Postion Senser
6.9 (70, 61 in.·lbf)
z
Gasket
z
O–Ring
Throttle Body No.2
Throttle Body No.1
z
Gasket
ISC Valve
N·m (kgf·cm, ft·lbf)
z
Non–reusable part
: Specified torque
Throttle Body No.3
6.9 (70, 61 in.·lbf)
6.9 (70, 61 in.·lbf)
FI–34
–
ELECTRONIC FUEL INJECTION
THROTTLE BODY
LEXUS RX300 (RM785E)
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