TOYOTA CAMRY 1999 Service Repair Manual

S04529
E1DLC1
SST
TE1
DLC1
S04531
DisconnectPlug
Plug
± SFI (1MZ±FE)IDLE AIR CONTROL (IAC) VALVE
SF±43
1542 Author: Date:
(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 IAC 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 be-
tween 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 air pipe.

SF07Z±03
S04742

Gasket
Throttle Body
Throttle Position
Sensor Connector
Water Bypass Hose
Air Cleaner HoseAir Assist Hose
Accelerator Cable)
Throttle Cable (A/T) EGR Gas Temperature
Sensor Bracket
N´m (kgf´cm, ft´lbf) : Specified torque

Non±reusable partWater Bypass HoseIAC Valve Connector
19.5 (200, 14)

Gasket Throttle Body
IAC Valve
SF±44
± SFI (1MZ±FE)IDLE AIR CONTROL (IAC) VALVE
1543 Author: Date:
COMPONENTS

SF080±03
P14340
± SFI (1MZ±FE)IDLE AIR CONTROL (IAC) VALVE
SF±45
1544 Author: Date:
REMOVAL
1. REMOVE THROTTLE BODY (See page SF±39)
2. REMOVE IAC VALVE
Remove the 4 screws, IAC valve and gasket.
HINT:
At the time of installation, please refer to the following items.
Place a new gasket on the throttle body.

SF081±03
P14290
RSC
+B
Battery
Closed
P14289
RSC+B
Battery
Open SF±46
± SFI (1MZ±FE)IDLE AIR CONTROL (IAC) VALVE
1545 Author: Date:
INSPECTION
INSPECT IAC VALVE OPERATION
(a) Connect the positive (+) lead from the battery to terminal
+B and negative (±) lead to terminal RSC, and check that
the valve is closed.
(b) Connect the positive (+) lead from the battery to terminal
+B and negative (±) lead to terminal RSO, and check that
the valve is open.
If operation is not as specified, replace the IAC valve.

SF082±01
± SFI (1MZ±FE)IDLE AIR CONTROL (IAC) VALVE
SF±47
1546 Author: Date:
INSTALLATION
Installation is in the reverse order of removal. (See page SF±45)

S05036
Vacuum Gage
SF083±03
S05037
Approx.
27.6 kPa SF±48
± SFI (1MZ±FE)ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)
1547 Author: Date:
ACOUSTIC CONTROL INDUCTION
SYSTEM (ACIS)
ON±VEHICLE INSPECTION
INSPECT INTAKE AIR CONTROL VALVE
(a) Using a 3±way connector, connect vacuum gauge to the
actuator hose.
(b) Start the engine.
(c) While the engine is idling, check that the vacuum gauge
needle does not move.
(d) Rapidly depress the accelerator pedal to fully open posi-
tion and check that the vacuum gauge needle momentari-
ly fluctuates up to approx. 26.7 kPa (200 mmHg, 7.9
in.Hg). (The actuator rod is pulled out.)

SF084±03
B06467
Intake Air Control Valve
Gasket
Actuator Vacuum Hose
Ground Strap
Ground Cable
: Specified torque

Non±reusable part
14.5 (145, 10)
N´m (kgf´cm, ft´lbf)
DLC1 Bracket
DLC1
± SFI (1MZ±FE)ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)
SF±49
1548 Author: Date:
COMPONENTS

SF085±02
B06470
(1) (2)
B06471
SF±50
± SFI (1MZ±FE)ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)
1549 Author: Date:
REMOVAL
1. DISCONNECT ACTUATOR VACUUM HOSE
2. DISCONNECT DLC1 FROM DLC1 BRACKET
3. REMOVE INTAKE AIR CONTROL VALVE
(a) Remove the 4 nuts and DLC1 bracket, and disconnect the
ground strap and cable.
(b) Remove the intake air control valve by prying a screwdriv-
er between the intake air control valve and air intake
chamber.
(c) Remove the gasket.

SF086±03
S05041
Vacuum
S05689
AirAir
S05688
Vacuum
± SFI (1MZ±FE)ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)
SF±51
1550 Author: Date:
INSPECTION
1. INSPECT INTAKE AIR CONTROL VALVE
(a) With 26.7 kPa (200 mmHg, 7.9 in.Hg) of vacuum applied
to the actuator, check that the actuator rod moves.
(b) One minute after applying the vacuum in (a), check that
the actuator rod does not return.
If the operation is not as specified, replace the intake air control
valve.
2. INSPECT VACUUM TANK
LOCATION: The LH side member under the battery tray.
(a) Check that air flows from port B to port A.
(b) Check that air does not flow from port A to port B.
(c) Plug port B with your finger, and apply 26.7 kPa (200
mmHg, 7.9 in.Hg) of vacuum to port A, and check that
there is no change is vacuum after one minute.
If the operation is not as specified, replace the vacuum tank.
3. INSPECT VSV (See page SF±60)

SF087±03
B06468
New Gasket
S05052
Seal
Packing
Rubber Seal
Packing SF±52
± SFI (1MZ±FE)ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)
1551 Author: Date:
INSTALLATION
1. INSTALL INTAKE AIR CONTROL VALVE
(a) Install a new gasket to the air intake chamber.
(b) Apply a light coat of engine oil to the rubber portions.
(c) Apply seal packing to the positions of the intake air control
valve shown in the illustration.
Seal packing: Part No. 08826±00080 or equivalent
(d) Install the intake air control valve, DLC1 bracket, ground
strap and cable with the 4 nuts.
Torque: 14.5 N´m (145 kgf´cm, 10 ft´lbf)
2. CONNECT DLC1
3. CONNECT ACTUATOR VACUUM HOSE