VALVE BODY TOYOTA T100 1996 Factory Owner's Guide

Downloaded from www.Manualslib.com manuals search engine B02580
SF1QK−01
− MFI (3RZ−FE)THROTTLE BODY
MF−25
977 Author: Date:
1996 TOYOTA T100 (RM449U)
THROTTLE BODY
ON−VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
(b) Check the vacuum at each port.
(1) Start the engine.
(2) Check the vacuum with your finger.
Port nameAt idleAt 3,500 rpm
PNo vacuumVacuum
ENo vacuumVacuum
RNo vacuumVacuum
2. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the sensor connector.
(b) Apply vacuum to the throttle opener.
(c) Using an ohmmeter, measure the resistance between
each terminal.
Throttle valve
conditionBetween
terminalsResistance
Fully closedVTA − E20.2 − 5.7 kΩ
Fully closedIDL − E22.3 kΩ or less
OpenIDL − E2Infinity
Fully openVTA − E22.0 − 10.2 kΩ
−VC − E22.5 − 5.9 kΩ
(d) Connect the sensor connector.
3. INSPECT THROTTLE OPENER
(a) Warm up engine
Allow the engine to warm up to normal operating tempera-
ture.
(b) Connect TOYOTA hand−held tester or OBD II scan tool.
(c) Check idle speed
Idle speed: 700 rpm
(d) Disconnect the vacuum hose from the throttle opener,
and plug the hose end.

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 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 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 SF – SFI SYSTEM (5VZ-FE)

SFI SYSTEM SF-1
FUEL PUMP SF-5
FUEL PRESSURE REGULATOR SF-14
INJECTOR SF-18
FUEL TANK AND LINE SF-25
MASS AIR FLOW (MAF) METER SF-28
THROTTLE BODY SF-31
IDLE AIR CONTROL (IAC) VALVE SF-39
EFI MAIN RELAY SF-45
CIRCUIT OPENING RELAY SF-46
VSV FOR FUEL PRESSURE CONTROL SF-47
VSV FOR EXHAUST GAS CONTROL
VALVE SF-49
VSV FOR EVAPORATIVE EMISSION
(EVAP) SF-50
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR SF-51
KNOCK SENSOR SF-54
EXHAUST GAS RECIRCULATION
(EGR) GAS TEMPERATURE SENSOR SF-59
HEATED OXYGEN SENSOR SF-60
ENGINE CONTROL MODULE (ECM) SF-61
FUEL CUT RPM SF-63

Downloaded from www.Manualslib.com manuals search engine SF1QN−01
P19944
P20279
− SFI (5VZ−FE)THROTTLE BODY
SF−31
1037 Author: Date:
1996 TOYOTA T100 (RM449U)
THROTTLE BODY
ON−VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
(b) w/ EGR:
Check the vacuum at each port.
Start the engine.
Check the vacuum with your finger.
Port nameAt idle3,500 rpm or more
ENo vacuumVacuum
RNo vacuumVacuum
2. INSPECT THROTTLE POSITION SENSOR
(a) Apply vacuum to the throttle opener.
(b) Disconnect the sensor connector.
(c) Using an ohmmeter, measure the resistance between
each terminal.
Throttle valve
conditionBetween
terminalsResistance
Fully closedVTA − E20.28 − 6.4 kΩ
Fully closedIDL − E20.5 kΩ or less
OpenIDL − E2Infinity
Fully openVTA − E22.0 − 11.6 kΩ
−VC − E22.7 − 7.7 kΩ
(d) Reconnect the sensor connector.

Downloaded from www.Manualslib.com manuals search engine P21056
Separator
Filter
Cap
S02081
S02082
P19943
SF−32
− SFI (5VZ−FE)THROTTLE BODY
1038 Author: Date:
1996 TOYOTA T100 (RM449U)
3. M/T:
INSPECT DASHPOT (DP)
(a) Allow the engine to warm up to normal operating tempera-
ture.
(b) Check the idle speed.
Idle speed:
700 ± 50 rpm
(c) Remove the cap, filter and separator from the DP.
(d) Maintain engine speed at 2,500 rpm or more.
(e) Plug the VTV hole with your finger.
(f) Release the throttle valve.
(g) Check the DP is set.
DP setting speed:
1,800 − 2,200 rpm
(h) If not as specified, adjust with the DP adjusting screw.
(i) Remove your finger from the hole and check that the en-
gine returns to idle speed in approx. 1 second.
(j) Reinstall the DP separator, filter and cap.
HINT:
Install the filter with the coarser surface facing the atmospheric
side (outward).
4. INSPECT THROTTLE OPENER
(a) Allow the engine to warm up to normal operating tempera-
ture.
(b) Check the idle speed.
Idle speed:
700 ± 50 rpm
(c) Disconnect the vacuum hose from the throttle opener,
and plug the hose end.
(d) Check the throttle opener setting speed.
Throttle opener setting speed:
900 − 1,950 rpm
If the throttle opener setting is not as specified, replace the
throttle body.
(e) Stop the engine.
(f) Reconnect the vacuum hose to the throttle opener.

Downloaded from www.Manualslib.com manuals search engine SF1QO−01
P21153
− SFI (5VZ−FE)THROTTLE BODY
SF−35
1996 TOYOTA T100 (RM449U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. DISCONNECT THESE CABLES:
(a) w/ Cruise control:
Cruise control actuator cable
(b) Accelerator cable
(c) A/T:
Throttle cable
3. REMOVE AIR CLEANER HOSE
4. DISCONNECT THROTTLE POSITION SENSOR CON-
NECTOR
5. DISCONNECT IAC VALVE CONNECTOR
6. REMOVE THROTTLE BODY
(a) Disconnect these vacuum hoses from the throttle body:
(1) Vacuum hose of throttle opener
(2) w/ EGR:
Vacuum hose (from port R of EGR vacuum modula-
tor)
(3) w/ EGR:
Vacuum hose (from port E of EGR vacuum modula-
tor)
(b) Disconnect these hoses from the IAC valve:
(1) Water bypass hose
(w/ EGR: from EGR valve)
(w/o EGR: from water bypass pipe)
(2) Water hose (from intake manifold)
(3) Air assist hose
(c) Disconnect the ignition coil connector.
(d) Remove the 2 bolts, 2 nuts, throttle body and gasket.
HINT:
Place a new gasket on the air intake chamber, the facing the
protrusion upward.
Torque: 18 N·m (180 kgf·cm, 13 ft·lbf)

Downloaded from www.Manualslib.com manuals search engine SF1QP−01
P19935
P20011
Throttle Lever
No Clearance
Throttle Stop Screw Vacuum
SF−36
− SFI (5VZ−FE)THROTTLE BODY
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 throttle valve is fully
closed.
Throttle valve fully closed angle: 10°
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 − E20.28 − 6.4 kΩ
0.32 mm (0.013 in.)IDL − E20.5 kΩ or less
0.54 mm (0.021 in.)IDL − E2Infinity
Throttle valve fully
openVTA − E22.0 − 11.6 kΩ
−VC − E22.7 − 7.7 kΩ
4. IF NECESSARY, ADJUST THROTTLE POSITION SEN-
SOR
(a) Loosen the 2 set screws of the sensor.
(b) Apply vacuum to the throttle opener.
(c) Insert a 0.43 mm (0.017 in.) thickness gauge, between
the throttle stop screw and stop lever.
(d) Connect the test probe of an ohmmeter to the terminals
IDL and E2 of the sensor.
(e) Gradually turn the sensor clockwise until the ohmmeter
deflects, and secure it with the 2 set screws.