TOYOTA T100 1996 Factory Service Manual

Downloaded from www.Manualslib.com manuals search engine SF0B1−02
P21635
− MFI (3RZ−FE)THROTTLE BODY
MF−27
1996 TOYOTA T100 (RM449U)
COMPONENTS

Downloaded from www.Manualslib.com manuals search engine SF0B2−02
P24769
P21655
P21654
MF−28
− MFI (3RZ−FE)THROTTLE BODY
1996 TOYOTA T100 (RM449U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE AIR CLEANER CAP, MAF METER AND
RESONATOR
(a) Disconnect the MAF meter connector, IAT sensor con-
nector and wire clamp.
(b) Loosen the air cleaner hose clamp.
(c) Loosen the 4 clips, and remove the air cleaner cap, MAF
meter and resonator.
3. M/T:
DISCONNECT ACCELERATOR CABLE FROM
THROTTLE BODY
4. A/T:
DISCONNECT ACCELERATOR AND THROTTLE
CABLES FROM THROTTLE BODY
5. REMOVE INTAKE AIR CONNECTOR
(a) Disconnect the 2 air hoses.
(b) Remove the 2 bolts, hose clamp and intake air connector.
6. REMOVE NO.1 AND NO.2 PCV HOSES
7. REMOVE THROTTLE BODY
(a) Disconnect the throttle position sensor connector.
(b) Disconnect the IAC valve connector.
(c) Disconnect the EVAP hose.
(d) Disconnect the 3 vacuum hoses.
(e) Remove the 2 bolts, 2 nuts and disconnect the throttle
body from the air intake chamber.
Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)
(f) Remove the throttle body gasket.
HINT:
At the time assembly please refer to the following items.
Install the throttle body with a new gasket.
(g) Disconnect the No.1 and No.2 water bypass hoses from
the throttle body, and remove the throttle body.

Downloaded from www.Manualslib.com manuals search engine SF0B3−03
P21653
− MFI (3RZ−FE)THROTTLE BODY
MF−29
1996 TOYOTA T100 (RM449U)
INSPECTION
1. CLEAN THROTTLE BODY
(a) Using a soft brush and carburetor cleaner, clean the cast
parts.
(b) Using compressed air, clean all the passages and aper-
tures.
NOTICE:
To prevent deterioration, do not clean the throttle position
sensor and IAC valve.
2. INSPECT THROTTLE VALVE
(a) Apply vacuum to the throttle opener.
(b) Check that there is no clearance between the throttle stop
screw and throttle lever when the closed throttle position.
3. INSPECT THROTTLE POSITION SENSOR
(a) Apply vacuum to the throttle opener.
(b) Insert a thickness gauge between the throttle stop screw
and stop lever.
(c) Using an ohmmeter, measure the resistance between
each terminal.
Clearance between lever
and stop screwBetween terminalsResistance
0 mm (0 in.)VTA − E20.2 − 5.7 kΩ
0.50 mm (0.020 in.)IDL − E22.3 kΩ or less
0.75 mm (0.030 in.)IDL − E2Infinity
Throttle valve fully openVTA − E22.0 − 10.2 kΩ
−VC − E22.5 − 5.9 kΩ

Downloaded from www.Manualslib.com manuals search engine SF0B4−03
MF−30
− MFI (3RZ−FE)THROTTLE BODY
1996 TOYOTA T100 (RM449U)
INSTALLATION
Installation is in the reverse order of removal (See page MF−28).

Downloaded from www.Manualslib.com manuals search engine SF0B5−02
P16016
P15974
− MFI (3RZ−FE)IDLE AIR CONTROL (IAC) VALVE
MF−31
983 Author: Date:
1996 TOYOTA T100 (RM449U)
IDLE AIR CONTROL (IAC) VALVE
ON−VEHICLE INSPECTION
1. INSPECT IAC VALVE OPERATION
(a) Initial conditions:
Engine at normal operating temperature
Idle speed set correctly
Transmission in neutral range
(b) Using SST, connect terminals TE1 and E1 of the
DLC1.
SST 09843−18020
(c) After engine rpm are kept at 1,000 − 1,500 rpm for 5 se-
conds, check that they return to idle speed.
If the rpm operation is not as specified, check the IAC valve, wir-
ing and ECU.
(d) Remove SST.
SST 09843−18020
2. INSPECT IAC 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 IAC valve connector.
(b) Using an ohmmeter, measure the resistance between ter-
minal +B and other terminals (RSC, RSO).
Resistance:
Cold: 21.5 − 28.5Ω
Hot: 17.0 − 24.5Ω
If resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.

Downloaded from www.Manualslib.com manuals search engine SF0B6−02
P21639
MF−32
− MFI (3RZ−FE)IDLE AIR CONTROL (IAC) VALVE
1996 TOYOTA T100 (RM449U)
COMPONENTS

Downloaded from www.Manualslib.com manuals search engine SF0B7−02
P15135
− MFI (3RZ−FE)IDLE AIR CONTROL (IAC) VALVE
MF−33
1996 TOYOTA T100 (RM449U)
REMOVAL
1. REMOVE THROTTLE BODY
(See page MF−28)
2. REMOVE IAC VALVE
Remove the 4 screws, IAC valve and gasket.

Downloaded from www.Manualslib.com manuals search engine SF0B8−01
P15730
Closed
RSC+B
Battery
P15729+B
Open
RSO
Battery MF−34
− MFI (3RZ−FE)IDLE AIR CONTROL (IAC) VALVE
1996 TOYOTA T100 (RM449U)
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.

Downloaded from www.Manualslib.com manuals search engine SF0B9−02
P15136
New Gasket
− MFI (3RZ−FE)IDLE AIR CONTROL (IAC) VALVE
MF−35
1996 TOYOTA T100 (RM449U)
INSTALLATION
1. INSTALL IAC VALVE
(a) Place a new gasket on the throttle body.
(b) Install the IAC valve with the 4 screws.
2. INSTALL THROTTLE BODY
(See page MF−30)

Downloaded from www.Manualslib.com manuals search engine SF0AW−03
MF−36
− MFI (3RZ−FE)MASS AIR FLOW (MAF) METER
988 Author: Date:
1996 TOYOTA T100 (RM449U)
MASS AIR FLOW (MAF) METER
COMPONENTS