sensor TOYOTA T100 1996 Factory Service Manual

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 SF1QJ−01
− MFI (3RZ−FE)MASS AIR FLOW (MAF) METER
MF−37
1996 TOYOTA T100 (RM449U)
REMOVAL
1. REMOVE AIR CLEANER CAP AND MAF METER
(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 and
MAF meter.
2. REMOVE MAF METER FROM AIR CLEANER CAP
(a) Remove the 4 nuts, MAF meter and gasket.
(b) Remove the IAT sensor from air cleaner cap.

Downloaded from www.Manualslib.com manuals search engine SF0AZ−02
− MFI (3RZ−FE)MASS AIR FLOW (MAF) METER
MF−39
1996 TOYOTA T100 (RM449U)
INSTALLATION
1. INSTALL MAF METER TO AIR CLEANER CAP
(a) Install the IAT sensor to the air cleaner cap.
(b) Place a new gasket on the air cleaner cap.
(c) Install the MAF meter with the 4 nuts.
Torque: 8.5 N·m (87 kgf·cm, 75 in.·lbf)
2. INSTALL MAF METER AND AIR CLEANER CAP

Downloaded from www.Manualslib.com manuals search engine P15816
Z02917
Ohmmeter
Acceptable
TEMPERATURE °C (°F)
RESISTANCE kΩ
SF0BG−02
− MFI (3RZ−FE)ENGINE COOLANT TEMPERATURE (ECT) SENSOR
MF−45
997 Author: Date:
1996 TOYOTA T100 (RM449U)
ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE ENGINE COOLANT TEMPERATURE
SENSOR
(a) Disconnect the ECT sensor connector.
(b) Using a 19 mm deep socket wrench, remove the ECT
sensor and gasket.
3. INSPECT ENGINE COOLANT TEMPERATURE
SENSOR
Using an ohmmeter, measure the resistance between the ter-
minals.
Resistance: Refer to the chart graph
If the resistance is not as specified, replace the ECT sensor.
4. REINSTALL ENGINE COOLANT TEMPERATURE
SENSOR
(a) Using a 19 mm deep socket wrench, install the ECT sen-
sor and gasket.
Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)
(b) Connect the ECT sensor connector.
5. REFILL ENGINE COOLANT

Downloaded from www.Manualslib.com manuals search engine SF1QL−01
Z02772
Ohmmeter
Acceptable
TEMPERATURE °C (°F)
RESISTANCE kΩ
30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
−20 0 20 40 60 80 100
(−4) (32) (68)(104)(140)(176)(212) MF−46
− MFI (3RZ−FE)INTAKE AIR TEMPERATURE (IAT) SENSOR
998 Author: Date:
1996 TOYOTA T100 (RM449U)
INTAKE AIR TEMPERATURE (IAT)
SENSOR
INSPECTION
1. REMOVE IAT SENSOR
2. INSPECT IAT SENSOR
Using an ohmmeter, measure the resistance between the ter-
minals.
Resistance: Refer to the chart graph
If the resistance is not as specified, replace the IAT sensor.
3. REINSTALL IAT SENSOR

Downloaded from www.Manualslib.com manuals search engine P24770
SF0BI−03
P01630
− MFI (3RZ−FE)KNOCK SENSOR
MF−47
999 Author: Date:
1996 TOYOTA T100 (RM449U)
KNOCK SENSOR
INSPECTION
1. REMOVE KNOCK SENSOR
(a) Disconnect the knock sensor connector.
(b) Using SST, remove the knock sensor.
SST 09816−30010
2. INSPECT KNOCK SENSOR
Using an ohmmeter, check that there is no continuity between
the terminal and body.
If there is continuity, replace the sensor.
3. REINSTALL KNOCK SENSOR
(a) Using SST, install the knock sensor.
SST 09816−30010
Torque: 44 N·m (450 kgf·cm, 33 ft·lbf)
(b) Connect the knock sensor connector.

Downloaded from www.Manualslib.com manuals search engine P21698
SF0BK−02
FI6320
Ohmmeter MF−48
− MFI (3RZ−FE)EXHAUST GAS RECIRCULATION (EGR) GAS
TEMPERATURE SENSOR
1000 Author: Date:
1996 TOYOTA T100 (RM449U)
EXHAUST GAS RECIRCULATION
(EGR) GAS TEMPERATURE
SENSOR
INSPECTION
1. REMOVE EGR GAS TEMPERATURE SENSOR
2. INSPECT EGR GAS TEMPERATURE SENSOR
Using an ohmmeter, measure the resistance between the ter-
minals.
Resistance:
64 − 97 kΩ at 50°C (122°F)
11 − 16 kΩ at 100°C (212°F)
2 − 4 kΩ at 150°C (302°F)
If the resistance is not as specified, replace the sensor.
3. REINSTALL EGR GAS TEMPERATURE SENSOR

Downloaded from www.Manualslib.com manuals search engine P15820
SF0BL−02
− MFI (3RZ−FE)HEATED OXYGEN SENSOR
MF−49
1001 Author: Date:
1996 TOYOTA T100 (RM449U)
HEATED OXYGEN SENSOR
INSPECTION
INSPECT HEATER RESISTANCE OF HEATED
OXYGEN SENSORS
(a) Disconnect the heated oxygen sensor connectors.
(b) Using an ohmmeter, measure the resistance between ter-
minals +B and HT.
Resistance:
Bank 1 Sensor 1: 5 − 7 Ω at 20°C (68°F)
Bank 1 Sensor 2: 11 − 16 Ω at 20°C (68°F)
If resistance is not as specified, replace the heated oxygen
sensors.
(c) Reconnect the heated oxygen sensor connectors.

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 SF1QM−01
− SFI (5VZ−FE)SFI SYSTEM
SF−1
1007 Author: Date:
1996 TOYOTA T100 (RM449U)
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (−) TERMINAL CABLE FROM BAT-
TERY
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative (−) terminal cable is removed from
the battery.
Therefore, if necessary, read the diagnosis before removing the
negative (−) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR LEATH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In the event of engine misfire, these precautions should
be taken.
(1) Check proper connection to battery terminals, etc.
(2) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(3) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when the handling heated oxygen sensors.
(1) Do not allow the oxygen sensor to drop or hit
against an object.
(2) Do not allow the sensor to come into contact with
water.
If Vehicle is Equipped with Mobile Radio System (ham, cb, etc.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
5. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine to run out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will allow air suction and cause the engine to run out
of tune.