Lexus RX300 (MCU15). Service manual — part 418
FI0VG–01
–
ELECTRONIC FUEL INJECTION
CAMSHAFT TIMING OIL CONTROL VALVE
FI–43
LEXUS RX300 (RM785E)
INSTALLATION
Installation is in the reverse order of removal (See page FI–41).
FI0VH–01
A05186
DLC1
E1
TE1
DLC1
SST
B04811
RSC
+B
RSO
Ohmmeter
FI–44
–
ELECTRONIC FUEL INJECTION
IDLE SPEED CONTROL (ISC) VALVE
LEXUS RX300 (RM785E)
IDLE SPEED CONTROL (ISC)
VALVE
ON–VEHICLE INSPECTION
1.
INSPECT ISC VALVE OPERATION
(a)
Initial conditions:
S
Engine at normal operating temperature
S
Idle speed checked correctly
S
Transmission in neutral position
S
A/C switch OFF
(b)
Using SST, connect terminals TE1 and E1 of the DLC1.
SST
09843–18020
(c)
After engine speed is kept at approx. 1,000 rpm for 5 se-
conds, check that it returns to idle speed.
If the engine speed operation is not as specified, check the ISC
valve, wiring and engine ECU.
(d)
Remove the SST from the DLC1.
SST
09843–18020
2.
INSPECT ISC VALVE RESISTANCE
NOTICE:
”Cold” and ”Hot” in the following sentences express the
temperature of the coils themselves. ”Cold” is from –10
°C
(14
°F) to 50°C (122°F) and ”Hot” is from 50°C (122°F) to
100
°C (212°F).
(a)
Disconnect the ISC valve connector.
(b)
Using an ohmmeter, measure the resistance between ter-
minal +B and other terminals (RSC, RSO).
Resistance:
Cold: 17.0 – 24.5 Ω
Hot: 21.5 – 28.5 Ω
If resistance is not as specified, replace the ISC valve.
(c)
Reconnect the ISC valve connector.
3.
INSPECT AIR ASSIST SYSTEM
(a)
Initial conditions:
S
Engine at normal operating temperature
S
Idle speed checked correctly
S
Transmission in neutral position
S
A/C switch OFF
A05186
E1
DLC1
TE1
SST
–
ELECTRONIC FUEL INJECTION
IDLE SPEED CONTROL (ISC) VALVE
FI–45
LEXUS RX300 (RM785E)
(b)
Using SST, connect terminals TE1 and E1 of the DLC1.
SST
09843–18020
(c)
After engine speed is kept at 900 – 1,300 rpm for 10 se-
conds, check that it returns to idle speed.
(d)
Stop the engine.
(e)
Disconnect the air assist hose from the air pipe, and block
off the ISC valve exit and the entry to the pipe.
(f)
Start the engine and check that the idle speed reaches
500 rpm or below (the engine may stall).
If the idle does not reach 500 rpm or below, check for a
leak between the air assist hoses, pipe and injectors.
(g)
Remove the SST from the DLC1.
SST
09843–18020
(h)
Reconnect the air assist hose to the ISC valve.
FI0VI–01
B12953
B05283
z
Gasket
Throttle Body
Water Bypass Hose
Air Hose
N·m (kgf·cm, ft·lbf)
z
Non–reusable part
19.5 (199, 14)
: Specified torque
Air Cleaner Case
Air Cleaner Cap
Air Cleaner Hose
Vacuum Hose
Accelerater Cable
Connector
Surge Tank Stay
Connector
ISC Valve
z
Gasket
Throttle Body
19.5 (199, 14)
FI–46
–
ELECTRONIC FUEL INJECTION
IDLE SPEED CONTROL (ISC) VALVE
LEXUS RX300 (RM785E)
COMPONENTS
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст